Troubleshooting Mitsubishi Space Runner Won't Start | Solutions & Recommendations

By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on September 22, 2023

1. Introduction

1.1 Overview of the Mitsubishi Space Runner

The Mitsubishi Space Runner, also known as the Mitsubishi Expo LRV in some markets, is a compact multi-purpose vehicle (MPV) that was produced by Mitsubishi Motors from 1991 to 1999. It was designed to provide practicality and versatility for both urban driving and family use. With its compact size, spacious interior, and customizable seating arrangements, the Space Runner offered a balance between passenger comfort and cargo-carrying capability.

The Space Runner featured a distinctive and aerodynamic design, characterized by its tall profile and wraparound rear windows. Its compact dimensions made it maneuverable in tight city streets, while the high roofline allowed for ample headroom and a more spacious interior. The vehicle was available in various trims and configurations, offering different levels of features and options.

Under the hood, the Space Runner came with a range of engine options, catering to different power and fuel efficiency requirements. The gasoline engine lineup included options such as the 1.6-liter 4G61, the 1.8-liter 4G93, the 2.0-liter 4G63, and the 2.4-liter 4G64. For those seeking a diesel option, the Space Runner offered a 1.8-liter 4D65 diesel engine. These engines provided a balance of performance and fuel economy for everyday driving needs.

Inside the cabin, the Space Runner boasted a practical and user-friendly layout. The rear seats could be folded, tumbled, or removed altogether, allowing for flexible cargo configurations and accommodating larger items when needed. The driver and passengers enjoyed a comfortable seating position, with good visibility provided by the elevated seating arrangement.

In terms of safety, the Space Runner incorporated various features to protect its occupants. These included driver and passenger airbags, anti-lock braking system (ABS), and seat belt pre-tensioners. The vehicle also underwent rigorous safety testing and compliance with international safety standards to ensure the well-being of its occupants.

Throughout its production years, the Mitsubishi Space Runner underwent updates and improvements, reflecting Mitsubishi's commitment to enhancing the driving experience and addressing any known issues. However, like any vehicle, the Space Runner was not immune to potential problems. Some common issues reported by owners included starting problems, fuel system issues, electrical faults, and engine performance concerns. It is essential to consult official Mitsubishi documentation, seek professional assistance, or refer to specific troubleshooting guides for accurate diagnosis and resolutions to these problems.

Overall, the Mitsubishi Space Runner offered a practical and versatile option for those seeking a compact MPV. Its combination of functionality, efficient engines, and adaptable interior made it a popular choice for urban commuters and families alike. Whether used for daily errands or weekend getaways, the Space Runner aimed to deliver a comfortable and enjoyable driving experience for its owners.

1.2 Importance of diagnosing and troubleshooting starting issues

Diagnosing and troubleshooting starting issues in the Mitsubishi Space Runner is of utmost importance to ensure reliable and efficient performance. When a vehicle fails to start, it can be frustrating and inconvenient, leaving the driver stranded and disrupting daily routines. Understanding the significance of diagnosing and resolving starting problems is essential for maintaining the Space Runner's functionality and addressing potential underlying issues.

Identifying the root cause of starting problems is the first step in troubleshooting. There are several common culprits that can prevent the Space Runner from starting. One possible cause is a lack of fuel, which could be due to an empty tank, a faulty fuel pump, or clogged fuel lines. In such cases, it is crucial to check the fuel level and verify proper fuel delivery.

Battery issues are another frequent source of starting problems. A weak or dead battery can prevent the Space Runner's engine from cranking. It is essential to inspect the battery's voltage, connections, and overall condition to determine if it needs recharging or replacement.

Ignition problems can also contribute to starting difficulties. Faulty ignition switches, damaged ignition coils, or worn-out spark plugs can impede the ignition process and prevent the engine from starting. Conducting a thorough inspection of these components and replacing any worn or faulty parts is necessary to restore proper ignition functionality.

Another potential culprit for starting issues is a malfunctioning starter motor. A faulty starter motor may not engage or turn over the engine, resulting in a no-start condition. It is essential to examine the starter motor's connections, solenoid, and brushes for signs of wear or damage.

Additionally, engine mechanical problems can also impact the Space Runner's ability to start. Issues such as low compression, timing belt failure, or engine sensor malfunctions can disrupt the combustion process, preventing the engine from firing up. Identifying and addressing these mechanical issues may require a more in-depth diagnosis or professional assistance.

Understanding the importance of diagnosing and troubleshooting starting issues in the Mitsubishi Space Runner is crucial for ensuring a reliable and efficient vehicle. By systematically examining potential causes such as fuel, battery, ignition, and mechanical problems, drivers can effectively resolve starting difficulties and restore their Space Runner's functionality. Regular maintenance, timely inspections, and addressing any identified issues promptly contribute to a smoother and more trouble-free starting experience, allowing owners to enjoy the dependability and convenience offered by the Mitsubishi Space Runner.

2. Common Reasons for a Mitsubishi Space Runner Not Starting

2.1 Lack of Fuel

One of the common reasons for a Mitsubishi Space Runner not starting is a lack of fuel. This can occur due to various factors that hinder the proper delivery or availability of fuel to the engine. Understanding and addressing these fuel-related issues is essential for troubleshooting starting problems in the Space Runner.

One of the primary causes of a lack of fuel is an empty or insufficient fuel tank. If the fuel gauge indicates a low or empty level, it is important to refill the tank with the appropriate fuel type recommended by Mitsubishi. In some cases, a faulty fuel gauge or sending unit may inaccurately display the fuel level, leading to a misjudgment of the available fuel. It is important to consider the accuracy of the fuel gauge and rely on other indicators such as distance driven or manual measurements to ensure an accurate assessment of fuel levels.

Another potential cause of fuel-related starting problems is a malfunctioning fuel pump. The fuel pump is responsible for delivering fuel from the tank to the engine. If the fuel pump fails or becomes inefficient, fuel may not reach the engine in sufficient quantities or at the required pressure, resulting in starting difficulties. Signs of a failing fuel pump may include engine sputtering, lack of power, or a complete engine stall. In such cases, professional inspection and potential replacement of the fuel pump may be necessary.

Clogged fuel lines can also impede the flow of fuel to the engine. Over time, debris, sediment, or contaminants can accumulate in the fuel lines, obstructing the smooth passage of fuel. This can lead to fuel starvation and difficulty in starting the Space Runner. Regular fuel system maintenance, including periodic fuel line cleaning or use of fuel additives, can help prevent clogs and ensure proper fuel flow.

Furthermore, issues with the fuel injectors can affect fuel delivery and starting performance. Fuel injectors are responsible for spraying precise amounts of fuel into the engine cylinders. If the fuel injectors become clogged or fail to function correctly, the engine may not receive the required fuel for combustion, resulting in starting problems. Cleaning or replacing the fuel injectors may be necessary to restore optimal fuel delivery.

Diagnosing and resolving fuel-related starting problems in the Mitsubishi Space Runner requires careful inspection and consideration of the fuel tank, fuel pump, fuel lines, and fuel injectors. Addressing any issues related to fuel availability, delivery, or quality can help ensure reliable starting and smooth operation of the vehicle. Regular maintenance, adherence to recommended fuel types, and professional assistance when necessary contribute to maintaining the Space Runner's fuel system integrity and overall performance.

2.2 Battery Issues

One of the common reasons for a Mitsubishi Space Runner not starting is battery-related issues. The battery plays a vital role in supplying the necessary electrical power to start the vehicle's engine. When battery problems arise, it can result in a no-start condition. Understanding the potential battery-related issues and taking appropriate measures is crucial for troubleshooting starting problems in the Space Runner.

One of the most common battery issues is a weak or discharged battery. Over time, batteries can lose their charge due to various factors such as age, extreme temperatures, or leaving electrical components on when the engine is not running. A weak or dead battery may not have enough power to crank the engine, leading to starting difficulties. In such cases, jump-starting the vehicle or using a battery charger to replenish the battery's charge can be a temporary solution. However, it is essential to address the underlying cause of the battery drain and consider replacing the battery if it consistently fails to hold a charge.

Corroded or loose battery terminals can also hinder proper electrical connections, resulting in starting problems. Corrosion on the battery terminals can impede the flow of electrical current between the battery and the vehicle's electrical system. Regular inspection and cleaning of the battery terminals, using a mixture of baking soda and water or a dedicated battery terminal cleaner, can help maintain good electrical contact. Additionally, ensuring that the battery terminals are securely tightened can prevent loose connections that may affect starting performance.

Another potential battery-related issue is a faulty or aging battery. Over time, batteries can degrade and lose their ability to hold a charge effectively. If the battery fails to provide sufficient voltage, it may struggle to start the Space Runner's engine. Regular battery testing, using a battery load tester or a multimeter, can help evaluate the battery's health and determine if it requires replacement. It is important to select a battery that meets the specifications recommended by Mitsubishi to ensure proper starting performance.

Electrical system malfunctions, such as a faulty alternator or voltage regulator, can also impact the charging of the battery. The alternator is responsible for recharging the battery while the engine is running, and the voltage regulator regulates the voltage output. If either of these components fails or malfunctions, the battery may not receive an adequate charge, leading to starting problems. Professional diagnosis and potential repair or replacement of these components may be necessary to resolve the underlying electrical issues.

Addressing battery-related issues in the Mitsubishi Space Runner requires proper inspection, maintenance, and potential replacement of the battery and associated components. Regular battery testing, cleaning of terminals, and addressing any electrical system malfunctions contribute to reliable starting and overall electrical system performance. Proper battery maintenance and periodic replacement when needed help ensure smooth operation and dependable starting of the Space Runner.

2.3 Ignition Problems

One of the common reasons for a Mitsubishi Space Runner not starting is ignition-related problems. The ignition system plays a crucial role in initiating the combustion process and starting the vehicle's engine. When issues arise within the ignition system, it can lead to difficulties in starting the Space Runner. Understanding the potential ignition-related problems and taking appropriate measures is essential for troubleshooting starting issues.

A faulty ignition switch can prevent the Space Runner from starting. The ignition switch is responsible for sending electrical power from the battery to various components of the vehicle, including the starter motor. If the ignition switch fails or malfunctions, it may not send the necessary signal to engage the starter motor, resulting in a no-start condition. Testing the ignition switch's functionality and replacing it if found faulty can help resolve starting problems.

Damaged ignition coils can also contribute to ignition-related starting issues. Ignition coils are responsible for generating the high voltage required to create the spark in the spark plugs, initiating the combustion process. If the ignition coils are damaged or fail to deliver the required voltage, it can lead to weak or no spark, causing starting difficulties. Inspecting the ignition coils for signs of damage, such as cracks or corrosion, and replacing them if necessary, can restore proper spark generation and improve starting performance.

Worn-out or faulty spark plugs can hinder the ignition process and prevent the engine from starting. Over time, spark plugs can accumulate deposits or wear down, leading to inconsistent or weak sparks. This can result in misfires or the engine failing to start altogether. Regular inspection and maintenance of the spark plugs, including cleaning or replacement according to the manufacturer's recommendations, can help ensure optimal spark plug performance and reliable starting.

Additionally, issues with the ignition timing can affect the starting process. The ignition timing determines when the spark plugs fire in relation to the position of the pistons, ensuring efficient combustion. If the ignition timing is off, it can lead to misfires or the engine not starting. Adjusting the ignition timing to the manufacturer's specifications can help resolve starting difficulties caused by timing issues.

Problems with the ignition system's wiring, such as damaged or loose connections, can also hinder the proper functioning of the ignition system. Faulty wiring can disrupt the flow of electrical current, preventing the ignition system from operating as intended. Thoroughly inspecting the ignition system's wiring and addressing any damaged or loose connections can help restore proper electrical flow and resolve starting problems.

Addressing ignition-related problems in the Mitsubishi Space Runner requires careful inspection and potential replacement of components such as the ignition switch, ignition coils, spark plugs, and ignition system wiring. Regular maintenance, adherence to recommended replacement intervals, and professional assistance when necessary contribute to reliable starting and overall ignition system performance. Maintaining a healthy ignition system ensures smooth operation and dependable starting of the Space Runner.

2.4 Starter Motor Failure

Starter motor failure is a common reason for a Mitsubishi Space Runner not starting. The starter motor is responsible for initiating the engine's rotation when the ignition key is turned, allowing the combustion process to begin. When the starter motor malfunctions or fails, it can result in starting difficulties and a no-start condition. Understanding the potential causes of starter motor failure and taking appropriate measures is essential for troubleshooting starting problems in the Space Runner.

One possible cause of starter motor failure is a faulty solenoid. The solenoid is a critical component of the starter motor that engages the starter gear with the engine's flywheel when the ignition key is turned. If the solenoid fails to function correctly, it may not engage the starter gear, preventing the engine from cranking. Testing the solenoid's functionality and replacing it if found faulty can help resolve starting problems caused by solenoid failure.

Worn-out starter motor brushes can also contribute to starting difficulties. The starter motor brushes make contact with the armature, generating the necessary electrical current for motor operation. Over time, the brushes can wear down, leading to poor electrical contact and reduced motor performance. Inspecting the starter motor brushes for signs of wear and replacing them if necessary can restore proper motor operation and improve starting performance.

Additionally, a damaged or worn starter motor armature can impede the motor's ability to rotate and start the engine. The armature is a core component of the starter motor that interacts with the brushes and generates rotational force. If the armature becomes damaged or worn, it may not rotate smoothly, leading to starting problems. Inspecting the starter motor armature for signs of damage, such as burnt or worn contacts, and replacing the starter motor if necessary can resolve starting difficulties caused by armature issues.

Furthermore, electrical issues such as a faulty starter motor relay or a weak electrical connection can affect the starter motor's performance. The starter motor relay controls the flow of electrical current to the motor, and a faulty relay can disrupt this flow, resulting in starting problems. Additionally, loose or corroded electrical connections can hinder the transfer of electrical power to the starter motor, affecting its operation. Testing the starter motor relay and ensuring secure and clean electrical connections can help address electrical issues that may contribute to starting difficulties.

Addressing starter motor failure in the Mitsubishi Space Runner requires thorough inspection and potential replacement of components such as the solenoid, starter motor brushes, armature, starter motor relay, and electrical connections. Regular maintenance, including periodic inspection and cleaning of electrical components, can help prevent starter motor failure. Timely replacement of worn or faulty components ensures reliable starting and overall starter motor performance. Maintaining a properly functioning starter motor is essential for a smooth and trouble-free starting experience in the Space Runner.

2.5 Engine Mechanical Problems

Engine mechanical problems can be a significant cause of a Mitsubishi Space Runner not starting. Various issues related to the engine's mechanical components can hinder its ability to start and run properly. Understanding the potential engine mechanical problems and taking appropriate measures is crucial for troubleshooting starting issues in the Space Runner.

One possible cause of engine mechanical problems is a broken or damaged timing belt. The timing belt is responsible for synchronizing the rotation of the engine's camshaft and crankshaft. If the timing belt snaps or becomes damaged, it can disrupt the engine's timing, resulting in a no-start condition. Regular inspection and replacement of the timing belt according to the manufacturer's recommendations are essential to prevent such problems.

Another potential engine mechanical issue that can prevent the Space Runner from starting is a seized engine. A seized engine occurs when the internal components, such as the pistons, rings, or bearings, become stuck or damaged. This can happen due to insufficient lubrication, overheating, or other factors. A seized engine will not rotate, preventing the combustion process from taking place. In such cases, professional inspection and potential engine repair or replacement may be necessary.

Faulty or worn-out spark plugs can also contribute to starting difficulties. Spark plugs play a crucial role in generating the spark that ignites the air-fuel mixture in the engine's cylinders. If the spark plugs are worn or covered in deposits, they may not produce a strong spark, leading to misfires or the engine failing to start. Regular inspection and maintenance of the spark plugs, including cleaning or replacement, can help ensure proper combustion and starting performance.

Additionally, low compression in the engine cylinders can result in starting problems. Compression refers to the pressure created during the combustion process that allows the engine to generate power. If the compression is low, the engine may struggle to start or not start at all. Low compression can be caused by worn piston rings, damaged cylinder walls, or faulty valves. Thorough engine inspection and potential repair or replacement of the affected components are necessary to restore proper compression and starting performance.

Fuel system issues, such as a clogged fuel filter or a malfunctioning fuel pump, can also contribute to engine mechanical problems and starting difficulties. A clogged fuel filter can restrict fuel flow to the engine, affecting combustion. A faulty fuel pump may not deliver fuel at the required pressure, leading to inadequate fuel supply. Regular fuel system maintenance, including the replacement of the fuel filter and inspection of the fuel pump, can help prevent such issues.

Addressing engine mechanical problems in the Mitsubishi Space Runner requires thorough inspection and potential repair or replacement of components such as the timing belt, spark plugs, engine internals, and fuel system components. Regular maintenance, adherence to recommended service intervals, and professional assistance when necessary contribute to reliable starting and overall engine performance. Maintaining a well-functioning engine is essential for the smooth operation and longevity of the Space Runner.

3. Troubleshooting by Model Years or Generations

3.1 First Generation (1991-1996)

The first generation of the Mitsubishi Space Runner was produced from 1991 to 1996 and is also known as the Mitsubishi RVR or Mitsubishi Expo LRV in some markets. During this period, several common issues were reported, and understanding them can help troubleshoot starting problems specific to this generation.

One of the common issues reported in the first-generation Space Runner is related to the fuel system. Some owners have experienced fuel leakage due to corroded fuel lines or loose connections. This can lead to starting difficulties or even pose a safety hazard. It is recommended to regularly inspect the fuel system, including the fuel lines and connections, and address any signs of corrosion or leaks promptly.

Another known problem in this generation is related to the ignition system. Some owners have reported issues with the ignition coil, which can result in weak or no spark, leading to starting difficulties. Inspecting the ignition coil for signs of damage or wear, and replacing it if necessary, can help resolve ignition-related starting problems.

Electrical issues have also been reported in the first-generation Space Runner. Some owners have experienced problems with the electrical wiring, such as loose connections or damaged wires. These issues can affect the starting system and prevent the engine from cranking. Thoroughly inspecting the electrical wiring and addressing any loose connections or damaged wires can help resolve starting difficulties caused by electrical problems.

Additionally, battery-related issues can be encountered in the first-generation Space Runner. Aging or faulty batteries can result in starting problems, especially in extreme temperatures. Regular battery testing and maintenance, including checking the battery's charge and replacing it when necessary, are important to prevent starting difficulties associated with battery issues.

Furthermore, mechanical issues can also affect the starting performance of the first-generation Space Runner. Some owners have reported problems with the starter motor or the starter solenoid. If the starter motor fails or the solenoid malfunctions, it can prevent the engine from cranking and starting. Professional inspection and potential repair or replacement of the starter motor and solenoid may be required to resolve starting problems caused by mechanical issues.

Understanding the common issues specific to the first-generation Mitsubishi Space Runner can aid in troubleshooting starting problems. Regular inspection, maintenance, and addressing issues promptly are crucial for ensuring reliable starting and overall performance of the vehicle. By being aware of the potential problems that can arise in this generation, owners can take the necessary steps to keep their Space Runner running smoothly.

3.2 Second Generation (1997-1999)

The second generation of the Mitsubishi Space Runner was produced from 1997 to 1999. This generation introduced some updates and improvements compared to the previous model. However, like any vehicle, it can still experience certain issues that may affect the starting process. Understanding the common problems specific to the second-generation Space Runner can help troubleshoot starting difficulties for this particular model.

One of the issues reported in the second-generation Space Runner is related to the fuel system. Some owners have encountered problems with the fuel pump, which can result in inadequate fuel delivery to the engine. Insufficient fuel supply can cause starting difficulties or engine stalling. Checking the fuel pump's functionality, including the fuel pressure, and replacing it if necessary, can help resolve fuel system-related starting problems.

Electrical issues have also been reported in this generation of the Space Runner. Some owners have experienced problems with the ignition switch, which can prevent the engine from cranking and starting. Additionally, issues with the electrical wiring, such as loose connections or damaged wires, can disrupt the starting process. Inspecting the ignition switch and electrical wiring for any faults or signs of damage and addressing them accordingly can help resolve starting difficulties caused by electrical problems.

Battery-related issues can also contribute to starting problems in the second-generation Space Runner. As the vehicle ages, the battery may become weak or lose its charge, leading to difficulties in starting the engine. Regular battery maintenance, including checking the battery's charge, cleaning the terminals, and replacing the battery when necessary, is important to ensure reliable starting performance.

Mechanical issues specific to the second-generation Space Runner include problems with the starter motor. Some owners have reported issues with the starter motor failing to engage or producing grinding noises during the starting process. A faulty starter motor can prevent the engine from cranking and starting. Inspecting the starter motor's functionality and potential replacement if it is found to be faulty can help resolve starting difficulties caused by mechanical issues.

Additionally, issues with the ignition timing or engine sensors can also affect the starting process in the second-generation Space Runner. Incorrect ignition timing or faulty sensors can disrupt the combustion process, resulting in starting difficulties. Professional inspection and potential adjustment or replacement of the ignition timing components or sensors may be necessary to address these issues.

By understanding the common problems specific to the second-generation Mitsubishi Space Runner, owners can effectively troubleshoot starting difficulties. Regular maintenance, inspection, and addressing any identified issues promptly are essential for ensuring reliable starting and overall performance of the vehicle. Being aware of the potential problems that can arise in this generation enables owners to take the necessary steps to keep their Space Runner running smoothly.

4. Troubleshooting by Engine Types or Engine Names

4.1 Gasoline Engines:

The Mitsubishi Space Runner was equipped with various gasoline engines throughout its production. Understanding the common problems associated with these engines can help in troubleshooting starting issues and maintaining their optimal performance. Here are some key gasoline engines found in the Space Runner along with their potential problems:

1. 4G63 Engine: The 4G63 engine is a 2.0-liter inline-four engine commonly found in the Space Runner. One common issue with this engine is related to the ignition system. Faulty ignition coils or spark plugs can cause misfires or difficulties in starting the engine. Regular inspection and replacement of these components can help maintain proper ignition and starting performance.

2. 4G64 Engine: The 4G64 engine is another 2.0-liter inline-four engine used in the Space Runner. This engine is known for its durability, but it can still experience certain issues. One common problem is related to the timing belt. If the timing belt breaks or becomes worn, it can lead to engine misalignment or even engine damage. Regular inspection and timely replacement of the timing belt are crucial to prevent such problems.

3. 4G93 Engine: The 4G93 engine is a 1.8-liter or 2.0-liter inline-four engine found in some versions of the Space Runner. One issue associated with this engine is related to the fuel system. Clogged fuel injectors or a malfunctioning fuel pump can result in insufficient fuel delivery, leading to starting difficulties. Regular cleaning of the fuel injectors and proper maintenance of the fuel pump can help prevent these problems.

4. 4G15 Engine: The 4G15 engine is a 1.5-liter inline-four engine used in certain Space Runner models. One common problem with this engine is related to the idle air control valve (IACV). A malfunctioning IACV can cause irregular idling or stalling, which affecting the starting process. Cleaning or replacing the IACV when necessary can help restore proper idle control and improve starting performance.

5. 4G92 Engine: The 4G92 engine is a 1.6-liter inline-four engine found in some versions of the Space Runner. One potential issue with this engine is related to the engine sensors. Faulty sensors, such as the crankshaft position sensor or the camshaft position sensor, can disrupt the engine's timing and affect the starting process. Regular inspection and replacement of these sensors, if needed, can help resolve such issues.

Proper maintenance, regular inspections, and prompt addressing of identified problems are essential for maintaining the optimal performance of the gasoline engines in the Mitsubishi Space Runner. By understanding the common issues associated with these engines, owners can take proactive measures to troubleshoot starting difficulties and ensure the smooth operation of their vehicles.

4.2 Diesel Engines:

The Mitsubishi Space Runner was also available with diesel engine options, known for their efficiency and torque. Troubleshooting starting issues in diesel engines requires an understanding of their unique characteristics and potential problems. Here are some key diesel engines found in the Space Runner along with their common troubleshooting points:

1. 4D56 Engine: The 4D56 engine is a 2.5-liter turbocharged diesel engine commonly found in the Space Runner. One common issue with this engine is related to the fuel system, particularly the fuel injectors. Over time, carbon deposits can build up on the injectors, affecting fuel atomization and leading to starting difficulties. Regular cleaning or replacement of the fuel injectors can help restore proper fuel delivery and improve starting performance.

2. 4M40 Engine: The 4M40 engine is a 2.8-liter turbocharged diesel engine used in some versions of the Space Runner. One potential problem with this engine is related to the glow plugs. Faulty glow plugs can result in inadequate heat generation during cold starts, causing starting issues. Checking the glow plugs' functionality and replacing them as needed is crucial for reliable starting in cold conditions.

3. 4D55 Engine: The 4D55 engine is a 2.3-liter turbocharged diesel engine found in certain Space Runner models. One common issue with this engine is related to the air intake system. Clogged or dirty air filters can restrict airflow to the engine, affecting combustion and resulting in starting difficulties. Regular inspection and replacement of the air filters are necessary to ensure proper air supply and starting performance.

4. 4D68 Engine: The 4D68 engine is a 2.0-liter turbocharged diesel engine used in specific Space Runner versions. One potential problem with this engine is related to the fuel system, particularly the fuel filter. A clogged fuel filter can impede fuel flow to the engine, causing starting issues. Regular replacement of the fuel filter is essential to maintain proper fuel delivery and prevent starting difficulties.

5. 4D65 Engine: The 4D65 engine is a 2.5-liter turbocharged diesel engine found in some Space Runner models. One common issue with this engine is related to the fuel injection pump. A malfunctioning or worn-out injection pump can result in improper fuel delivery, leading to starting difficulties. Regular inspection and potential repair or replacement of the fuel injection pump can help resolve such problems.

Understanding the common problems associated with diesel engines in the Mitsubishi Space Runner can aid in troubleshooting starting difficulties. Regular maintenance, including fuel system cleaning, glow plug inspection, and air filter replacement, is crucial for ensuring optimal performance. By addressing these issues proactively, owners can maintain reliable starting and overall performance in their diesel-powered Space Runners.

5. Troubleshooting by Trim Levels or Complectations

5.1 Base Model

The base model of the Mitsubishi Space Runner offers a reliable and practical option for drivers. While it may lack some of the additional features and upgrades found in higher trim levels, it still provides a comfortable driving experience. Troubleshooting common issues specific to the base model can help address starting difficulties and ensure smooth operation. Here are some potential troubleshooting points for the base model of the Space Runner:

1. Battery Health: Starting issues can often be traced back to battery problems. It is important to ensure that the base model's battery is in good condition. Regularly check the battery terminals for corrosion or loose connections and clean or tighten them as needed. If the battery is old or weak, consider replacing it to improve starting performance.

2. Ignition System: The ignition system plays a crucial role in starting the vehicle. If the base model experiences starting difficulties, it is essential to inspect the ignition components. Check the spark plugs for signs of wear or fouling and replace them if necessary. Additionally, inspect the ignition coils and ignition wires for any damage or malfunction and address any issues found.

3. Fuel System: A well-functioning fuel system is vital for starting and overall engine performance. In the base model, it is important to ensure that the fuel tank is adequately filled with clean fuel. Check for any signs of fuel leakage, such as odor or wet spots around the fuel tank or fuel lines. Additionally, inspect the fuel filter for clogs and replace it if necessary to maintain proper fuel flow.

4. Starter Motor: The starter motor is responsible for cranking the engine during the starting process. If the base model experiences starting issues, it is important to check the starter motor. Listen for any abnormal noises, such as grinding or clicking sounds, when attempting to start the vehicle. If the starter motor fails to engage or turns slowly, it may need to be replaced or repaired.

5. Electrical Connections: The base model of the Space Runner relies on a network of electrical connections to operate various components. It is essential to inspect the wiring harness and electrical connectors for any signs of damage or loose connections. Addressing any issues found, such as corroded or loose connectors, can help resolve starting difficulties caused by electrical problems.

By troubleshooting these common issues specific to the base model of the Mitsubishi Space Runner, owners can address starting difficulties and maintain reliable performance. Regular maintenance, inspections, and prompt repairs or replacements of faulty components are key to ensuring smooth operation and a satisfying driving experience in the base model of the Space Runner.

5.2 GL

The GL trim level of the Mitsubishi Space Runner offers additional features and upgrades compared to the base model, providing an enhanced driving experience. Troubleshooting common issues specific to the GL trim level can help address starting difficulties and ensure smooth operation. Here are some potential troubleshooting points for the GL trim level of the Space Runner:

1. Keyless Entry System: The GL trim level may come equipped with a keyless entry system. If the vehicle fails to start, check the key fob battery. A weak or depleted battery can prevent the keyless entry system from functioning properly. Replace the key fob battery if necessary and ensure it is properly synchronized with the vehicle.

2. Anti-theft System: The GL trim level may feature an anti-theft system for added security. If the vehicle does not start and the anti-theft indicator is flashing or illuminated, there may be an issue with the system. Check the owner's manual for specific instructions on how to reset or disable the anti-theft system, if needed.

3. Power Accessories: The GL trim level may include power windows, power mirrors, and other power accessories. If these accessories are not functioning properly or the vehicle fails to start, it could indicate an electrical issue. Check the fuses related to the power accessories and replace any blown fuses. Additionally, inspect the wiring and connectors for any damage or loose connections.

4. Immobilizer System: Some GL trim levels may come equipped with an immobilizer system. If the vehicle fails to start and the immobilizer indicator is flashing or illuminated, it indicates a problem with the immobilizer system. This system is designed to prevent unauthorized starting of the vehicle. Consult the owner's manual for instructions on how to reset or resolve immobilizer issues.

5. Audio System: The GL trim level may have an upgraded audio system with additional features. If the vehicle does not start or experiences electrical issues, it is important to check the audio system and associated wiring. Faulty wiring or a malfunctioning audio system can cause electrical problems that affect starting performance. Inspect the wiring and connectors and address any issues found.

By troubleshooting these common issues specific to the GL trim level of the Mitsubishi Space Runner, owners can address starting difficulties and ensure the proper functioning of the added features. Regular maintenance, inspections, and addressing any electrical or system-related issues promptly are important for maintaining reliable performance in the GL trim level of the Space Runner.

5.3 GLX

The GLX trim level of the Mitsubishi Space Runner offers advanced features and enhanced performance compared to lower trim levels. Troubleshooting common issues specific to the GLX trim level can help address starting difficulties and ensure smooth operation. Here are some potential troubleshooting points for the GLX trim level of the Space Runner:

1. Keyless Start System: The GLX trim level may feature a keyless start system, allowing the driver to start the vehicle with the push of a button. If the vehicle does not start, check the key fob battery and ensure it is properly synchronized with the vehicle. Weak or depleted batteries can prevent the keyless start system from functioning properly.

2. Electronic Stability Control (ESC): The GLX trim level may include electronic stability control, which helps maintain vehicle stability during challenging driving conditions. If the vehicle experiences starting difficulties, it is important to ensure that the ESC system is functioning correctly. Any warning lights related to ESC should be addressed, and the system should be inspected by a qualified technician if necessary.

3. Advanced Safety Systems: The GLX trim level may come equipped with advanced safety systems such as lane departure warning, forward collision warning, or automatic emergency braking. If the vehicle does not start, check for any warning lights related to these safety systems. A malfunctioning safety system can sometimes affect the starting process. Consult the owner's manual for instructions on troubleshooting or resetting these systems.

4. Upgraded Audio and Entertainment Systems: The GLX trim level may feature an upgraded audio and entertainment system with additional components and connectivity options. If the vehicle experiences starting difficulties or electrical issues, it is important to inspect the audio and entertainment system components. Check the wiring, connectors, and fuses related to the system, and address any issues found.

5. Climate Control System: The GLX trim level may have an advanced climate control system with automatic temperature control and other features. If the vehicle does not start or experiences electrical problems, it is important to check the climate control system. Inspect the controls, sensors, and wiring associated with the system, and address any issues or malfunctions.

By troubleshooting these common issues specific to the GLX trim level of the Mitsubishi Space Runner, owners can address starting difficulties and ensure the proper functioning of the advanced features and systems. Regular maintenance, inspections, and prompt repairs or replacements of faulty components are important for maintaining reliable performance in the GLX trim level of the Space Runner.

5.4 GLS

The GLS trim level of the Mitsubishi Space Runner offers a higher level of luxury, comfort, and advanced features compared to lower trim levels. Troubleshooting common issues specific to the GLS trim level can help address starting difficulties and ensure smooth operation. Here are some potential troubleshooting points for the GLS trim level of the Space Runner:

1. Keyless Entry and Start System: The GLS trim level may come equipped with a keyless entry and start system, allowing for convenient access and starting of the vehicle. If the vehicle fails to start, check the key fob battery and ensure it is properly synchronized with the vehicle. Replace the battery if needed and ensure that the key fob is within range of the vehicle when attempting to start it.

2. Advanced Infotainment System: The GLS trim level may feature an advanced infotainment system with a touchscreen display, navigation, Bluetooth connectivity, and other multimedia functions. If the vehicle experiences starting difficulties or electrical issues, inspect the infotainment system and associated wiring. Check for any error messages or malfunctioning components and address them accordingly.

3. Power Seats and Memory Function: The GLS trim level may offer power-adjustable seats with a memory function that allows drivers to save their preferred seat positions. If the vehicle fails to start, check the power seat controls and associated wiring. Ensure that the seat is properly adjusted and the memory function is not causing any electrical issues that may affect the starting process.

4. Automatic Climate Control: The GLS trim level may include automatic climate control, providing precise temperature settings and comfort for occupants. If the vehicle does not start or experiences electrical problems, inspect the climate control system. Check the controls, sensors, and wiring associated with the system to ensure they are functioning properly.

5. Advanced Safety Features: The GLS trim level may come equipped with advanced safety features such as adaptive cruise control, blind-spot monitoring, and rearview cameras. If the vehicle experiences starting difficulties, check for any warning lights related to these safety systems. Malfunctioning safety features can sometimes interfere with the starting process, so addressing any issues is important.

By troubleshooting these common issues specific to the GLS trim level of the Mitsubishi Space Runner, owners can address starting difficulties and ensure the proper functioning of the advanced features and systems. Regular maintenance, inspections, and prompt repairs or replacements of faulty components are essential for maintaining reliable performance in the GLS trim level of the Space Runner.

5.5 Sport Variant

The Sport variant of the Mitsubishi Space Runner offers a sportier driving experience and additional performance-oriented features. Troubleshooting common issues specific to the Sport variant can help address starting difficulties and ensure optimal performance. Here are some potential troubleshooting points for the Sport variant of the Space Runner:

1. High-Performance Engine: The Sport variant may be equipped with a high-performance engine that delivers increased power and torque. If the vehicle experiences starting difficulties, it is important to check the engine components. Ensure that the fuel system is delivering an adequate supply of fuel to the engine and that the ignition system is functioning correctly. Address any issues with the fuel injectors, spark plugs, or ignition coils, if necessary.

2. Sport Suspension System: The Sport variant may feature a specially tuned suspension system for improved handling and stability. If the vehicle does not start or exhibits abnormal vibrations during starting, inspect the suspension components. Check for any signs of wear or damage, such as worn-out bushings or leaking shock absorbers. Replace any faulty components to restore proper functionality.

3. Performance Exhaust System: The Sport variant may come with a performance exhaust system that enhances engine sound and improves exhaust flow. If the vehicle experiences starting difficulties, check the exhaust system for any leaks or blockages. A damaged or clogged exhaust system can affect engine performance and starting. Inspect the exhaust pipes, muffler, and catalytic converter for any issues.

4. Upgraded Braking System: The Sport variant may feature an upgraded braking system with larger brake discs or performance-oriented brake pads. If the vehicle does not start or exhibits braking issues, it is important to check the braking system. Inspect the brake fluid level and condition, and ensure that the brake calipers, rotors, and pads are in good working order. Address any issues with the braking system promptly.

5. Sport Interior and Exterior Styling: The Sport variant may have unique interior and exterior styling elements, such as sport seats, sportier body kits, or unique paint options. If the vehicle experiences starting difficulties, it is important to focus on the mechanical components rather than the aesthetic features. However, ensure that all body panels are securely fastened and that there are no loose or damaged parts that may affect the vehicle's operation.

By troubleshooting these common issues specific to the Sport variant of the Mitsubishi Space Runner, owners can address starting difficulties and ensure optimal performance. Regular maintenance, inspections, and prompt repairs or replacements of faulty components are crucial for maintaining reliable performance in the Sport variant of the Space Runner.

6. Solutions and Recommendations

6.1 Diagnosing the Specific Issue

When diagnosing a specific issue with the Mitsubishi Space Runner, it is important to follow a systematic approach to identify the root cause. Here are some steps and recommendations for diagnosing and resolving problems with the Space Runner:

1. Visual Inspection: Begin by conducting a visual inspection of the vehicle. Look for any obvious signs of damage, leaks, or loose connections. Inspect the battery terminals, wiring harnesses, and fluid levels. Pay attention to any unusual odors, noises, or warning lights on the dashboard.

2. Check the Battery: A common cause of starting issues is a weak or dead battery. Use a multimeter to measure the battery voltage. A healthy battery should read around 12.6 volts. If the voltage is significantly lower, the battery may need to be recharged or replaced. Ensure that the battery terminals are clean and securely tightened.

3. Fuel System Inspection: Inspect the fuel system to ensure that there is an adequate supply of fuel. Check the fuel level, fuel pump, and fuel filter. A clogged fuel filter or a faulty fuel pump can prevent the engine from starting. Consider checking the fuel pressure using a fuel pressure gauge to verify proper fuel delivery.

4. Ignition System Check: The ignition system plays a crucial role in starting the vehicle. Inspect the spark plugs, ignition coils, and ignition wires for any signs of damage or wear. Replace any faulty components as necessary. Check for a strong spark at the spark plugs to ensure proper ignition.

5. Starter Motor and Alternator Inspection: The starter motor is responsible for initiating the engine's rotation, while the alternator provides power to the electrical system. If the starter motor fails to engage or the alternator is not charging the battery properly, it can lead to starting issues. Check the starter motor for any signs of malfunction, such as a clicking sound or lack of response. Use a voltmeter to test the alternator output.

6. Diagnostic Trouble Codes (DTCs): Use an OBD-II scanner to retrieve any diagnostic trouble codes stored in the vehicle's onboard computer. These codes can provide valuable insights into specific issues affecting the engine or other systems. Refer to the vehicle's service manual or consult with a professional technician to interpret the codes accurately.

7. Professional Assistance: If you are unable to diagnose the issue or if it requires specialized knowledge and tools, it is recommended to seek professional assistance. A qualified technician with expertise in Mitsubishi vehicles can perform a comprehensive diagnosis using advanced diagnostic equipment and provide appropriate solutions.

Remember to record any relevant details during the diagnosis process, such as observed symptoms, error codes, or specific conditions when the issue occurs. This information can be valuable when seeking assistance or discussing the problem with a technician.

By following these steps and recommendations for diagnosing the specific issue with the Mitsubishi Space Runner, owners can effectively identify the root cause of starting problems and make informed decisions on the required repairs or replacements.

6.2 Necessary Replacements or Repairs

Once you have diagnosed the specific issue with your Mitsubishi Space Runner, it's important to determine the necessary replacements or repairs to address the problem. Here are some common solutions and recommendations for various components that may require attention:

1. Battery: If the battery is weak or dead, it may need to be recharged or replaced. Consider replacing the battery if it is old or no longer holding a charge. Ensure that the new battery meets the specifications recommended by Mitsubishi for your Space Runner model.

2. Fuel System: If there are issues with the fuel system, such as a clogged fuel filter or a faulty fuel pump, the necessary repairs will depend on the specific problem. A clogged fuel filter can be replaced, while a malfunctioning fuel pump may need to be repaired or replaced entirely.

3. Ignition System: Faulty spark plugs, ignition coils, or ignition wires may require replacements. Replace worn-out spark plugs with new ones that are compatible with your Space Runner's engine specifications. Faulty ignition coils or wires should be replaced with OEM (Original Equipment Manufacturer) or high-quality aftermarket components.

4. Starter Motor: A malfunctioning starter motor may need to be repaired or replaced. Consider consulting a professional technician to diagnose the specific issue and determine the best course of action. They can assess if the starter motor can be repaired or if a replacement is necessary.

5. Alternator: If the alternator is not charging the battery properly, it may need to be repaired or replaced. A faulty alternator can lead to starting issues and cause the battery to drain. A professional technician can diagnose the problem and provide the appropriate solution.

6. Wiring and Electrical Connections: If there are issues with the wiring or electrical connections, repairs may involve repairing or replacing damaged wires, connectors, or harnesses. It is important to ensure that all electrical connections are secure and properly insulated to prevent further issues.

7. Other Components: Depending on the specific problem, other components such as sensors, relays, or modules may require replacements or repairs. It is recommended to consult a professional technician who can accurately diagnose the issue and recommend the necessary solutions.

When replacing or repairing components, it is advisable to use genuine Mitsubishi parts or high-quality aftermarket parts that meet the specifications of your Space Runner model. Following the manufacturer's guidelines and seeking professional assistance when necessary can help ensure the effectiveness and longevity of the repairs.

Always keep track of the maintenance and repairs performed on your Space Runner, including the date, mileage, and details of the work done. This information can be helpful for future reference and can assist technicians in diagnosing any recurring issues.

By addressing the necessary replacements or repairs based on the diagnosed problem, owners can restore the functionality of their Mitsubishi Space Runner and enjoy reliable performance on the road.

6.3 Maintenance Tips to Prevent Future Starting Problems

To prevent future starting problems with your Mitsubishi Space Runner, regular maintenance is essential. Here are some maintenance tips and recommendations to help keep your vehicle in optimal condition:

1. Battery Maintenance:
- Regularly inspect the battery terminals and clean them if there is any corrosion. Corrosion can hinder the flow of electricity.
- Check the battery's voltage and charge it if necessary. A fully charged battery ensures reliable starting.

2. Fuel System Maintenance:
- Use high-quality fuel from reputable sources to prevent contamination and fuel system issues.
- Periodically inspect the fuel filter and replace it according to the manufacturer's recommendations.
- Keep the fuel tank at least a quarter full to prevent fuel pump issues caused by running on low fuel levels.

3. Ignition System Maintenance:
- Replace spark plugs at the recommended intervals to ensure proper combustion and ignition.
- Regularly inspect and replace worn-out ignition wires or ignition coils to maintain a strong spark.

4. Regular Oil Changes:
- Follow the recommended oil change intervals specified in your vehicle's owner manual. Fresh engine oil helps maintain engine lubrication and performance.
- Use the recommended oil viscosity and quality to ensure proper lubrication in different weather conditions.

5. Electrical System Maintenance:
- Inspect and replace any worn-out or damaged fuses to avoid electrical issues that can affect the starting system.
- Keep an eye on the condition of the wiring harnesses and connectors, ensuring they are secure and free from damage.

6. Cooling System Maintenance:
- Regularly check the coolant level and top it up if needed. A properly functioning cooling system prevents engine overheating, which can lead to starting problems.
- Flush and replace the coolant at the recommended intervals to maintain optimal cooling system performance.

7. Regular Tune-ups:
- Schedule regular tune-ups according to your vehicle's maintenance schedule. This includes inspections of various components, such as the air filter, belts, and hoses.
- Replace worn-out or damaged components as recommended by the manufacturer.

8. Protecting Against Moisture:
- Keep the vehicle parked in a dry and covered area to minimize moisture-related issues. Moisture can lead to electrical malfunctions and corrosion.

9. Professional Inspections:
- Periodically have your vehicle inspected by a professional technician who is familiar with Mitsubishi vehicles. They can identify potential issues and perform necessary maintenance or repairs.

10. Owner's Manual:
- Refer to the vehicle's owner's manual for specific maintenance guidelines and recommendations provided by Mitsubishi. Adhering to these guidelines will help maintain the vehicle's reliability and performance.

By following these maintenance tips, owners can significantly reduce the chances of starting problems with their Mitsubishi Space Runner. Regular upkeep and attention to key components will help ensure a smooth and trouble-free driving experience.

7. Conclusion

In conclusion, the Mitsubishi Space Runner is a versatile and reliable vehicle. However, like any car, it may encounter starting issues from time to time. By understanding the common reasons for starting problems and following the troubleshooting steps outlined in this guide, owners can diagnose and address the specific issues affecting their Space Runner.

From fuel-related problems such as lack of fuel or a faulty fuel system, to battery issues, ignition problems, starter motor failures, and engine mechanical issues, there are various components that can contribute to starting problems. It is important to diagnose the specific issue accurately to implement the appropriate solution.

By following the troubleshooting steps according to the model years or generations, engine types or engine names, and trim levels or complectations, owners can narrow down the possible causes and focus on the relevant components associated with their Space Runner.

Once the specific issue has been identified, it is crucial to determine the necessary replacements or repairs. Replacing worn-out or faulty components with genuine Mitsubishi parts or high-quality aftermarket parts ensures the longevity and reliability of the repairs.

To prevent future starting problems, regular maintenance is key. Following the recommended maintenance schedule, inspecting and maintaining key components such as the battery, fuel system, ignition system, and electrical system, and keeping up with oil changes, coolant checks, and tune-ups will help keep the Space Runner in optimal condition.

It is important to consult a professional technician when necessary, especially for complex issues or when unsure about the troubleshooting process. Their expertise and knowledge of Mitsubishi vehicles can provide accurate diagnoses and effective solutions.

By implementing these troubleshooting steps, performing regular maintenance, and seeking professional assistance when needed, owners can keep their Mitsubishi Space Runner in excellent running condition and enjoy many miles of reliable performance on the road.

FAQ: Troubleshooting Mitsubishi Space Runner Starting Issues - Common Questions Answered

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