Troubleshooting Guide: Great Wall Wingle 7 Won't Start

By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on November 30, 2023

1. Introduction

The Great Wall Wingle 7 is a robust and versatile pickup truck that offers a range of features and capabilities. Built by Great Wall Motors, this model has gained popularity for its rugged design, spacious interior, and reliable performance. In this article, we will explore the Great Wall Wingle 7 and its key characteristics.

The Great Wall Wingle 7 was first introduced in 2019 and has since become a prominent option in the pickup truck segment. Designed to tackle various terrains and demanding workloads, it showcases a muscular and sturdy exterior, exuding a strong presence on the road.

One notable aspect of the Great Wall Wingle 7 is its diverse lineup, which includes different models, generations, and configurations to cater to various needs. These variations can encompass differences in features, equipment, and engine options, providing customers with a range of choices to suit their preferences and requirements.

Speaking of engines, the Great Wall Wingle 7 is equipped with a selection of powertrains that offer a balance between performance and efficiency. These engines, which can vary based on the specific model and generation, include gasoline and diesel options. They provide ample power for both everyday commuting and demanding tasks, ensuring the Wingle 7 can handle a wide range of driving conditions.

Additionally, the Great Wall Wingle 7 offers different trim levels or complectations, which further enhance the driving experience. These trim levels often provide varying levels of comfort, technology, and convenience features, allowing drivers to select the one that aligns with their preferences and budget.

Owners of the Great Wall Wingle 7 can expect a spacious and well-designed interior that combines functionality with comfort. The cabin provides ample legroom and headroom for both the driver and passengers, ensuring a pleasant ride even during long journeys. Furthermore, the vehicle offers modern infotainment systems, advanced safety features, and ergonomic controls, enhancing convenience and overall driving satisfaction.

In conclusion, the Great Wall Wingle 7 is a formidable pickup truck that offers a blend of power, versatility, and reliability. With its robust design, varied engine options, and multiple trim levels, it caters to a wide range of drivers and their specific needs. Whether for work or leisure, the Great Wall Wingle 7 has established itself as a capable and appealing option in the pickup truck market.

2. Check the Battery and Electrical System

2.1. Battery inspection and troubleshooting

When encountering a Great Wall Wingle 7 that won't start, one of the primary areas to inspect is the battery and electrical system. A faulty or depleted battery can often be the root cause of starting issues. Here is a detailed exploration of battery inspection and troubleshooting for the Great Wall Wingle 7:

1. Battery Inspection:
- Begin by visually inspecting the battery for any signs of damage, such as cracks or leaks. If any damage is detected, the battery may need to be replaced.
- Check the battery terminals for corrosion or loose connections. Corrosion can hinder the flow of electricity and result in poor contact. Clean the terminals if necessary, using a battery terminal cleaning brush and a solution of baking soda and water.
- Ensure that the battery cables are securely connected to the terminals. Loose or improperly connected cables can cause starting issues.

2. Testing Battery Voltage:
- Use a digital multimeter to measure the battery voltage. A fully charged battery should read around 12.6 volts. If the voltage is significantly lower, it may indicate a weak or discharged battery.
- If the battery voltage is low, attempt to jump-start the vehicle using jumper cables and a secondary power source (such as another vehicle with a fully charged battery). If the Wingle 7 starts successfully, it indicates that the battery is likely the cause of the starting problem.

3. Assessing Battery Health:
- If the battery voltage is low even after a jump-start, it may indicate a worn-out or faulty battery. Consider taking the battery to a professional service center or an auto parts store for a battery load test. This test measures the battery's ability to hold a charge and provides a more accurate assessment of its health.
- Depending on the battery's condition, it may need to be recharged or replaced. If the battery is old or consistently fails load tests, replacement is usually the best course of action.

4. Alternator and Charging System:
- A malfunctioning alternator can lead to a drained battery, even if it is in good condition. To check the alternator's performance, start the engine and measure the voltage across the battery terminals. It should read around 13.8 to 14.8 volts when the engine is running. If the voltage is significantly lower or higher, it may indicate a problem with the alternator.
- Additionally, inspect the alternator belt for proper tension and signs of wear. A loose or damaged belt can affect the alternator's performance.

By thoroughly inspecting the battery and conducting necessary troubleshooting steps, you can identify potential issues that may be preventing the Great Wall Wingle 7 from starting. Remember, if you encounter persistent starting problems or are unsure about any aspect of the inspection, it is recommended to seek assistance from a qualified automotive professional to ensure an accurate diagnosis and appropriate resolution.

2.2. Testing the battery voltage and connections

When troubleshooting starting issues with a Great Wall Wingle 7, it is crucial to test the battery voltage and connections as part of the battery and electrical system inspection. This step helps assess the battery's charge and ensures proper electrical contact. Here's a detailed explanation of testing the battery voltage and connections:

1. Checking Battery Voltage:
- Begin by turning off all electrical components in the vehicle, including lights, radio, and air conditioning.
- Open the hood and locate the battery. Inspect the battery terminals for any corrosion, ensuring they are clean and free of debris.
- Using a digital multimeter, set it to the DC voltage setting and connect the red probe to the positive terminal (+) of the battery and the black probe to the negative terminal (-).
- Read the voltage displayed on the multimeter. A fully charged battery typically measures around 12.6 volts. If the reading is significantly lower, it suggests a weak or discharged battery that may require charging or replacement.

2. Testing Battery Connections:
- Examine the battery terminals for tightness and secure connections. Loose or corroded terminals can impede proper electrical flow.
- If there is corrosion on the terminals, clean them using a mixture of baking soda and water. Use a wire brush or battery terminal cleaner to remove the corrosion gently.
- After cleaning, reconnect the battery terminals firmly. Ensure they are snug and secure.

3. Load Testing:
- If the battery voltage is low or if you suspect a weak battery, a load test can provide a more accurate assessment of its condition.
- Consult the vehicle's service manual or seek professional assistance for the appropriate load testing procedure, as it can vary depending on the equipment available.
- Load testing simulates the battery's performance under normal operating conditions, determining if it can supply sufficient power for starting the engine. A failing battery may show a significant drop in voltage during the test, indicating the need for replacement.

4. Voltage Drop Test:
- Conduct a voltage drop test to identify any electrical resistance or poor connections in the starting circuit.
- With the vehicle's ignition off, connect the multimeter's red probe to the positive terminal of the battery and the black probe to the starter motor's positive terminal.
- Have an assistant turn the ignition key to the start position while you observe the voltage reading on the multimeter. If the voltage drop exceeds the manufacturer's specifications, it may indicate a problem with the wiring or connections in the starting circuit.

By testing the battery voltage and ensuring proper connections, you can accurately assess the battery's charge and identify any potential issues that may be affecting the Great Wall Wingle 7's starting system. Remember to consult the vehicle's service manual or seek professional guidance if you encounter any difficulties during the testing process or require further diagnosis.

2.3. Alternator and starter motor evaluation

When troubleshooting starting issues with a Great Wall Wingle 7, it is essential to evaluate the alternator and starter motor as part of the battery and electrical system inspection. These components play a crucial role in supplying power to the vehicle's electrical system and initiating the engine's operation. Here's a detailed explanation of evaluating the alternator and starter motor:

1. Alternator Evaluation:
- Start by visually inspecting the alternator for any physical damage, such as loose connections, damaged wiring, or worn-out belts. Ensure that the alternator is securely mounted.
- Check the alternator belt tension. A loose or worn-out belt can prevent the alternator from generating sufficient electrical power. Adjust or replace the belt if necessary.
- With the engine off, use a digital multimeter set to the DC voltage setting. Connect the red probe to the positive terminal of the battery and the black probe to the negative terminal.
- Start the engine and observe the multimeter reading. A properly functioning alternator should generate a voltage reading between 13.8 and 14.8 volts. If the reading is significantly lower or higher, it may indicate a problem with the alternator.

2. Starter Motor Evaluation:
- Begin by ensuring that the battery is fully charged and in good condition.
- Locate the starter motor, typically mounted near the engine's flywheel or flexplate. Inspect the wiring and connections for any signs of damage or loose connections.
- With the help of an assistant, turn the ignition key to the start position while you listen for any clicking sounds or abnormal noises coming from the starter motor. A clicking sound may suggest a faulty solenoid or insufficient power reaching the starter motor.
- If the starter motor does not engage or rotate the engine, perform a voltage drop test. Connect the multimeter's red probe to the positive terminal of the starter motor and the black probe to the negative terminal or a suitable ground point. Have your assistant attempt to start the engine while monitoring the voltage reading on the multimeter. If a significant voltage drop occurs, it indicates a problem in the starter motor circuit.

3. Professional Assistance:
- If you suspect a fault with the alternator or starter motor, it is recommended to seek professional assistance. Automotive technicians have specialized equipment and knowledge to conduct in-depth testing and diagnostics.
- A professional evaluation may involve more advanced tests, such as a bench test for the starter motor or measuring alternator output under different load conditions.

By evaluating the alternator and starter motor, you can determine if these components are functioning correctly and supplying the necessary power for starting the Great Wall Wingle 7. If any issues are identified, seeking professional help will ensure accurate diagnosis and appropriate repairs. Remember to prioritize safety and consult the vehicle's service manual for specific instructions relevant to your model.

3. Fuel System Issues

3.1. Fuel level and fuel gauge accuracy

When troubleshooting a Great Wall Wingle 7 that won't start, it is essential to consider fuel system issues. One common aspect to examine is the fuel level and the accuracy of the fuel gauge. Here's a detailed explanation of the fuel level and fuel gauge accuracy:

1. Checking Fuel Level:
- Begin by visually inspecting the fuel gauge on the dashboard. Note the indicated fuel level.
- Locate the fuel filler cap and remove it. Use a flashlight if needed to assess the fuel level directly in the fuel tank.
- Compare the actual fuel level in the tank with the reading on the fuel gauge. If there is a significant discrepancy, it may indicate an issue with the fuel gauge, sender unit, or the fuel level sensor.

2. Inspecting the Fuel Gauge:
- Check the instrument cluster and ensure all the other gauges and warning lights are functioning correctly. If multiple gauges or indicators are not working, it could indicate a larger electrical issue.
- Verify that the fuel gauge needle moves when the ignition is turned on and observe if it returns to the "Empty" position when the ignition is turned off. If the needle remains stuck or behaves erratically, it may indicate a problem with the gauge itself or its connection.
- Inspect the wiring and connectors related to the fuel gauge for any signs of damage, loose connections, or corrosion. Repair or replace any faulty components as necessary.

3. Fuel Level Sender Unit:
- The fuel level sender unit is responsible for sending a signal to the fuel gauge to indicate the fuel level. It is typically located inside the fuel tank.
- Consult the vehicle's service manual for instructions on accessing and inspecting the fuel level sender unit. Depending on the model, it may require removing the fuel tank or accessing it through an access panel.
- Inspect the sender unit for any signs of damage, such as broken wires or a worn-out float mechanism. Replace the sender unit if it is faulty or damaged.

4. Additional Considerations:
- It is important to remember that the fuel gauge may not always provide a precise reading due to factors like sloshing fuel, steep inclines, or driving on uneven terrain. However, significant discrepancies between the gauge reading and the actual fuel level should be addressed.
- If the fuel gauge and sender unit are functioning correctly, but the engine still does not start, it is advisable to inspect other components of the fuel system, such as the fuel pump, fuel filter, and fuel lines, for potential issues.

By examining the fuel level and the accuracy of the fuel gauge, you can identify any discrepancies that may affect the Great Wall Wingle 7's starting performance. If necessary, repair or replace faulty components to ensure accurate fuel level readings and address any underlying fuel system problems. If the issue persists or if you are uncertain about any aspect of the inspection, it is recommended to seek assistance from a qualified automotive professional.

3.2. Checking for fuel delivery problems

When troubleshooting a Great Wall Wingle 7 that experiences starting issues, it is important to consider fuel system problems as a possible cause. One aspect to investigate is the fuel delivery, ensuring that fuel is reaching the engine properly. Here's a detailed explanation of checking for fuel delivery problems:

1. Fuel Pump Operation:
- Begin by turning the ignition key to the "ON" position without starting the engine. Listen for a brief buzzing or whirring sound coming from the fuel tank area. This sound indicates that the fuel pump is functioning correctly.
- If there is no sound or if it sounds abnormal, it may suggest a problem with the fuel pump or its electrical connections. Inspect the wiring and connections related to the fuel pump, ensuring they are secure and free from damage. Consider seeking professional assistance if needed.

2. Fuel Filter Inspection:
- Locate the fuel filter, which is typically positioned along the fuel line between the fuel tank and the engine. Consult the vehicle's service manual for the exact location and removal procedure.
- Inspect the fuel filter for any signs of clogging, such as accumulated debris or sediment. A clogged fuel filter can restrict fuel flow and cause starting issues.
- If the fuel filter appears dirty or clogged, it is recommended to replace it with a new one. Follow the manufacturer's guidelines for the correct fuel filter replacement procedure.

3. Fuel Line Examination:
- Inspect the fuel lines for any visible signs of damage, such as leaks, cracks, or loose connections. Damaged fuel lines can result in fuel leakage or inadequate fuel supply.
- Check the connections between the fuel lines and the fuel pump, fuel filter, and fuel injectors. Ensure they are securely attached and properly sealed.
- If any fuel line damage or leaks are detected, the affected lines should be repaired or replaced promptly to ensure proper fuel delivery.

4. Fuel Injector Assessment:
- The fuel injectors are responsible for delivering fuel to the engine cylinders. If they are clogged or malfunctioning, it can disrupt the fuel supply.
- Consider using a fuel injector cleaning solution or taking the vehicle to a professional service center for a thorough fuel injector cleaning if there are signs of poor fuel delivery or if the fuel injectors have not been serviced for an extended period.

By checking for fuel delivery problems, including the operation of the fuel pump, the condition of the fuel filter, the integrity of the fuel lines, and the performance of the fuel injectors, you can identify potential issues that may be preventing the Great Wall Wingle 7 from starting properly. It is important to address any discovered problems promptly, either through repair or replacement of faulty components, to ensure efficient fuel delivery to the engine. If needed, consult the vehicle's service manual or seek assistance from a qualified automotive professional for accurate diagnosis and resolution of fuel system issues.

3.3. Inspecting the fuel pump, filter, and lines

When troubleshooting fuel system issues in a Great Wall Wingle 7, it is important to inspect the fuel pump, fuel filter, and fuel lines. These components play a crucial role in delivering fuel from the tank to the engine. Here's a detailed explanation of inspecting the fuel pump, filter, and lines:

1. Fuel Pump Inspection:
- Locate the fuel pump, which is typically located inside the fuel tank. Refer to the vehicle's service manual for the exact location and removal procedure.
- Visually inspect the fuel pump for any signs of physical damage, such as cracks or leaks. Damaged fuel pumps may fail to supply sufficient fuel to the engine.
- Check the electrical connections of the fuel pump for any loose or corroded terminals. Ensure the connections are secure and free from debris or corrosion.
- If any issues are detected with the fuel pump, it may need to be replaced. Consult a professional mechanic or refer to the service manual for the appropriate procedure.

2. Fuel Filter Examination:
- Locate the fuel filter, which is typically positioned along the fuel line between the fuel tank and the engine. Consult the vehicle's service manual for the exact location.
- Remove the fuel filter and inspect it for any signs of clogging or contamination. A clogged fuel filter can restrict fuel flow and cause starting issues.
- If the fuel filter appears dirty or clogged, it should be replaced with a new one. Follow the manufacturer's guidelines for the correct fuel filter replacement procedure.

3. Fuel Line Inspection:
- Inspect the fuel lines for any visible signs of damage, such as leaks, cracks, or corrosion. Damaged fuel lines can lead to fuel leakage or inadequate fuel supply to the engine.
- Pay close attention to the connections between the fuel lines and the fuel pump, fuel filter, and fuel injectors. Ensure the connections are tight and properly sealed.
- If any fuel line damage or leaks are detected, the affected lines should be repaired or replaced promptly to prevent fuel delivery issues.

4. Fuel Pressure Testing:
- To further diagnose fuel system problems, consider performing a fuel pressure test. This test measures the pressure of the fuel system to ensure it meets the manufacturer's specifications.
- Connect a fuel pressure gauge to the fuel rail or fuel line and turn the ignition on without starting the engine. Observe the pressure reading on the gauge.
- Compare the recorded pressure with the specifications provided in the vehicle's service manual. If the pressure is outside the recommended range, it may indicate a problem with the fuel pump or other fuel system components.

By inspecting the fuel pump, fuel filter, and fuel lines, you can identify potential issues that may be affecting the Great Wall Wingle 7's fuel system. It is important to address any detected problems promptly, such as replacing a faulty fuel pump, cleaning or replacing a clogged fuel filter, or repairing damaged fuel lines. If needed, consult the vehicle's service manual or seek assistance from a qualified automotive professional for accurate diagnosis and appropriate repairs.

4. Ignition System Problems

4.1. Spark plug inspection and replacement

When diagnosing ignition system problems in a Great Wall Wingle 7, it is crucial to inspect the spark plugs. Spark plugs play a vital role in the combustion process by igniting the air-fuel mixture inside the engine cylinders. Here's a detailed explanation of spark plug inspection and replacement:

1. Spark Plug Inspection:
- Start by locating the spark plugs. In most engines, they are situated on the cylinder head and connected to the ignition coils or spark plug wires.
- Inspect each spark plug visually for signs of wear, damage, or fouling. Look for worn electrodes, cracked insulators, or excessive carbon deposits.
- Pay attention to the spark plug gap, which is the distance between the center electrode and the ground electrode. Use a spark plug gap tool to ensure the gap matches the specifications provided in the vehicle's service manual.
- Check the spark plug wire or ignition coil connected to each spark plug for any signs of damage, such as cracks or corrosion. Ensure the connections are secure and free from debris.

2. Spark Plug Cleaning:
- If the spark plugs appear dirty or fouled but are still in good condition, they can be cleaned using a spark plug cleaner or wire brush.
- Gently remove any carbon deposits or other debris from the spark plug electrodes, ensuring not to damage the electrodes or insulator.
- After cleaning, recheck the spark plug gap to ensure it matches the manufacturer's specifications.

3. Spark Plug Replacement:
- If the spark plugs show significant signs of wear, damage, or fouling, it is recommended to replace them.
- Refer to the vehicle's service manual for the correct spark plug type, heat range, and torque specifications.
- Remove the old spark plugs using a spark plug socket and extension. Take care not to damage the surrounding components.
- Install the new spark plugs by hand, ensuring they are properly threaded. Use a torque wrench to tighten them to the specified torque value.
- If applicable, reconnect the spark plug wires or ignition coils to the corresponding spark plugs, ensuring they are securely attached.

4. Regular Maintenance:
- Spark plugs should be inspected and replaced at regular intervals as recommended by the vehicle manufacturer. This interval is typically specified in terms of mileage or time, such as every 30,000 miles or every two years.
- Regular maintenance of the ignition system, including spark plug replacement, ensures optimal engine performance, fuel efficiency, and reliable starting.

By inspecting and maintaining the spark plugs in a Great Wall Wingle 7, you can address potential ignition system problems. Cleaning or replacing worn or fouled spark plugs can improve engine performance, fuel efficiency, and overall reliability. If you are unsure about any aspect of spark plug inspection or replacement, consult the vehicle's service manual or seek assistance from a qualified automotive professional.

4.2. Evaluating the ignition coil

When encountering ignition system problems in a Great Wall Wingle 7, it is important to evaluate the ignition coil. The ignition coil is responsible for converting the low voltage from the battery into a high voltage that ignites the air-fuel mixture in the engine cylinders. Here's a detailed explanation of evaluating the ignition coil:

1. Visual Inspection:
- Begin by locating the ignition coil. In most engines, there is one ignition coil per cylinder, and they are typically situated on the cylinder head.
- Inspect the ignition coil for any signs of physical damage, such as cracks, corrosion, or burnt marks. Damaged ignition coils may not provide sufficient voltage to ignite the air-fuel mixture.
- Check the wiring and connectors attached to the ignition coil. Ensure they are secure, free from damage, and properly connected.

2. Primary and Secondary Circuit Testing:
- To evaluate the ignition coil, perform primary and secondary circuit testing using a digital multimeter.
- Set the multimeter to the resistance (ohms) setting and measure the primary circuit resistance. Consult the vehicle's service manual for the specific resistance value required for the ignition coil. A significant deviation from the specified value may indicate a faulty ignition coil.
- Next, measure the secondary circuit resistance. Again, refer to the service manual for the correct resistance value. Deviations from the specified value may suggest a problem with the ignition coil.
- If the resistance readings are outside the recommended range or if there is an open circuit (infinite resistance), the ignition coil is likely faulty and should be replaced.

3. Ignition Coil Testing with a Spark Tester:
- Another way to evaluate the ignition coil is by using a spark tester. This tool checks if the ignition coil is generating a spark.
- Disconnect the spark plug wire from the spark plug and connect the spark tester to the end of the wire.
- Ground the spark tester to a metal part of the engine and crank the engine.
- Observe the spark tester for a strong, consistent spark. If no spark is present or if the spark is weak and intermittent, it indicates a potential issue with the ignition coil.

4. Professional Diagnosis:
- If you are uncertain about the evaluation process or if the ignition coil tests indicate a problem, it is advisable to seek professional assistance. An automotive technician can perform more advanced tests, such as using an oscilloscope, to accurately diagnose the ignition coil's functionality.

By evaluating the ignition coil in a Great Wall Wingle 7, you can identify potential ignition system problems. If the ignition coil is found to be faulty, it should be replaced with a new one. Proper functioning of the ignition coil ensures the reliable generation of high voltage for spark ignition, leading to smooth engine operation. If you require assistance or are unsure about any aspect of the evaluation process, consult the vehicle's service manual or seek help from a qualified automotive professional.

4.3. Checking the distributor, if applicable

When dealing with ignition system problems in a Great Wall Wingle 7, it is essential to check the distributor if the vehicle is equipped with one. The distributor plays a crucial role in distributing the high voltage from the ignition coil to the spark plugs in the correct firing order. Here's a detailed explanation of checking the distributor:

1. Locate the Distributor:
- Begin by locating the distributor. In older Great Wall Wingle 7 models, you may find a distributor mounted on the engine, usually near the front or side.
- Newer models may feature a distributorless ignition system, in which case the ignition coil directly connects to each spark plug.

2. Visual Inspection:
- Inspect the distributor cap for any signs of damage, such as cracks, carbon tracking, or moisture. Damaged or worn-out distributor caps can cause misfires and engine performance issues.
- Check the rotor inside the distributor cap. Look for any signs of wear, corrosion, or excessive carbon deposits. A worn or faulty rotor can lead to improper spark distribution.
- Examine the condition of the spark plug terminals on the distributor cap. Ensure they are clean, free from corrosion, and properly seated.

3. Distributor Cap and Rotor Replacement:
- If the distributor cap or rotor is found to be damaged or worn, they should be replaced. Follow the manufacturer's specifications for the correct replacement parts.
- Remove the distributor cap by disconnecting the retaining clips or screws, depending on the design. Take note of the position of the rotor and the spark plug wire connections before removing the cap.
- Replace the distributor cap with a new one, ensuring it is aligned correctly. Install the new rotor if necessary.
- Reconnect the spark plug wires to their respective terminals on the distributor cap, following the correct firing order specified in the vehicle's service manual.

4. Ignition Timing Check:
- For vehicles with adjustable ignition timing, it is advisable to check the ignition timing after inspecting or replacing the distributor components.
- Use a timing light and follow the instructions provided in the vehicle's service manual to set the ignition timing accurately.
- Improper ignition timing can result in engine misfires, poor performance, and decreased fuel efficiency.

5. Professional Assistance:
- If you are unsure about any aspect of checking the distributor or if the problem persists after inspection and replacement, it is recommended to seek professional assistance. Automotive technicians have the necessary expertise and specialized tools to diagnose and repair complex ignition system issues.

By checking the distributor in a Great Wall Wingle 7, you can identify potential ignition system problems and ensure proper spark distribution. If any damage or wear is detected in the distributor cap or rotor, they should be replaced with new components. Additionally, verifying the ignition timing helps optimize engine performance. If you require assistance or have doubts about any step, consult the vehicle's service manual or consult with a qualified automotive professional.

5. Engine Mechanical Problems

5.1. Checking for proper engine oil level and quality

Checking the engine oil level and quality in a Great Wall Wingle 7 is crucial for maintaining optimal engine performance and longevity. The engine oil lubricates the internal components, reduces friction, and helps dissipate heat. Here's a detailed explanation of how to check the engine oil level and quality:

1. Park on a Level Surface:
- Before checking the engine oil, park the vehicle on a level surface and ensure the engine is turned off. This ensures an accurate reading of the oil level.

2. Locate the Oil Dipstick:
- Open the hood of the vehicle and locate the oil dipstick. In most engines, the dipstick has a brightly colored handle for easy identification.
- The dipstick is usually inserted into a tube connected to the engine block.

3. Remove and Wipe the Dipstick:
- With a clean cloth or paper towel, remove the oil dipstick from its tube.
- Wipe off any oil residue from the dipstick using the cloth or paper towel. This ensures an accurate reading of the oil level.

4. Check the Oil Level:
- Insert the clean dipstick back into the tube and push it all the way in.
- Remove the dipstick again and observe the oil level. The dipstick usually has markings indicating the ideal oil level range.
- If the oil level is below the minimum mark, additional oil should be added. If the oil level is above the maximum mark, an oil change or oil drainage may be necessary.

5. Inspect the Oil Quality:
- While checking the oil level, it is also important to inspect the oil quality.
- Observe the color and consistency of the oil on the dipstick. Fresh engine oil is typically amber or light brown in color.
- If the oil appears excessively dark, gritty, or contains metal particles, it may indicate contamination or engine wear. In such cases, it is recommended to have the oil analyzed or changed.

6. Add or Change Engine Oil:
- If the oil level is low, add the recommended engine oil gradually, allowing time for it to settle before rechecking the level.
- Consult the vehicle's owner manual or service manual for the correct oil type and viscosity grade recommended by the manufacturer.
- If the oil quality is compromised, it is advisable to schedule an oil change and use high-quality engine oil that meets the manufacturer's specifications.

7. Regular Oil Maintenance:
- Regularly check the engine oil level as part of routine vehicle maintenance. This ensures the engine is adequately lubricated and protected.
- Follow the manufacturer's recommended oil change intervals, which are typically based on mileage or time.
- Maintaining proper engine oil level and quality helps prevent engine damage, promotes fuel efficiency, and extends the life of the Great Wall Wingle 7.

By checking the engine oil level and quality in a Great Wall Wingle 7, you can ensure the engine is properly lubricated and protected. Adequate oil level and clean oil contribute to optimal engine performance and reliability. Regular oil maintenance, including checking and changing the oil as recommended, is essential for the longevity of the engine. If you have any concerns or questions regarding the engine oil, refer to the vehicle's owner manual or consult with a qualified automotive professional.

5.2. Assessing engine compression

Assessing the engine compression in a Great Wall Wingle 7 is important for diagnosing potential engine mechanical problems. Engine compression refers to the pressure generated within the cylinders during the combustion process. Proper compression ensures efficient engine performance and power delivery. Here's a detailed explanation of how to assess engine compression:

1. Prepare the Vehicle:
- Ensure the vehicle is parked on a level surface and the engine is turned off.
- Remove the ignition key and engage the parking brake.

2. Gather the Required Tools:
- To assess engine compression, you will need a compression tester, which is available at automotive supply stores.
- Familiarize yourself with the compression tester's instructions and ensure it is compatible with the spark plug thread size of the Wingle 7.

3. Locate the Spark Plugs:
- Locate the spark plugs in the engine. They are typically attached to the engine cylinder head.
- Depending on the Wingle 7 model, you may have four or six spark plugs, as it can be equipped with a four-cylinder or six-cylinder engine.

4. Remove the Spark Plugs:
- Carefully remove one spark plug wire from the spark plug by firmly grasping the boot and pulling straight out.
- Use a spark plug socket and ratchet to remove the spark plug from the cylinder head.
- Repeat this process for all spark plugs in the engine.

5. Perform Compression Test:
- Attach the compression tester to the first spark plug hole.
- Follow the specific instructions provided with your compression tester for proper usage.
- Have an assistant crank the engine multiple times while you observe the compression gauge readings.
- Note the maximum compression value displayed on the gauge and repeat this process for each cylinder.

6. Compare Compression Readings:
- Compare the compression readings between cylinders. There may be slight variations, but the readings should generally be within a close range.
- Consult the vehicle's service manual or manufacturer's specifications for the recommended compression range for your specific engine.

7. Analyze Compression Results:
- If the compression readings are significantly lower in one or more cylinders, it may indicate problems such as worn piston rings, worn valves, or a blown head gasket.
- Low compression can lead to engine misfires, power loss, and poor fuel efficiency.
- If compression readings are considerably uneven between cylinders, it could indicate issues with cylinder head gasket sealing or valve train components.

8. Seek Professional Assistance:
- If you are uncertain about the compression test procedure or if the compression readings indicate potential engine problems, it is recommended to consult a qualified automotive technician.
- An experienced professional can perform further diagnostics, such as a leak-down test, to pinpoint the specific cause of low compression and provide appropriate repairs.

Assessing engine compression in a Great Wall Wingle 7 allows you to identify potential engine mechanical problems. By comparing compression readings between cylinders, you can determine if any components, such as piston rings or valves, are worn or damaged. Seeking professional assistance is advisable if you have any doubts or if the compression readings suggest significant issues with the engine. Proper engine compression is crucial for optimal engine performance, power delivery, and overall vehicle reliability.

5.3. Inspecting timing belt or chain, if applicable

Inspecting the timing belt or chain in a Great Wall Wingle 7 is important for maintaining proper engine timing and preventing potential engine mechanical problems. The timing belt or chain controls the synchronized movement of the engine's valves and pistons, ensuring precise combustion and optimal engine performance. Here's a detailed explanation of how to inspect the timing belt or chain:

1. Identify the Timing Belt or Chain:
- Determine whether your Great Wall Wingle 7 is equipped with a timing belt or a timing chain.
- Timing belts are made of rubber and have teeth on the inner side, while timing chains are typically metal and do not have teeth visible from the outside.

2. Consult the Manufacturer's Recommendation:
- Refer to the vehicle's owner manual or service manual to find the recommended interval for inspecting and replacing the timing belt or chain.
- The interval can vary depending on the specific model year, engine type, and driving conditions.

3. Visual Inspection:
- For timing belts, visually inspect the condition of the belt for signs of wear, cracks, fraying, or oil contamination. If any damage or wear is found, the timing belt should be replaced.
- Timing chains are generally more durable, but they can still experience issues such as stretching or excessive slack. Inspect the chain for signs of damage or excessive play.

4. Tension and Slack Check:
- Timing belts should have proper tension for effective operation. Check the tension by pressing on the belt at the mid-point between two pulleys. The belt should have a slight amount of deflection but should not feel loose.
- For timing chains, check for excessive slack by gently pushing or pulling on the chain at a midpoint. Excessive movement indicates the chain may need adjustment or replacement.

5. Check for Alignment:
- Ensure the timing belt or chain is properly aligned with the camshaft and crankshaft sprockets. Misalignment can cause timing issues and affect engine performance.
- Verify that the timing marks on the sprockets align with the reference marks on the engine block or cylinder head.

6. Professional Inspection:
- If you are unsure about the condition or alignment of the timing belt or chain, or if any signs of damage or wear are detected, it is recommended to have a professional automotive technician perform a thorough inspection.
- They can use specialized tools and knowledge to assess the timing belt or chain's condition and make informed recommendations for replacement or adjustment.

7. Timely Replacement:
- Follow the manufacturer's recommended interval for timing belt or chain replacement. Neglecting timely replacement can lead to catastrophic engine failure if the belt or chain breaks, causing valve and piston collision.
- If the timing belt or chain is due for replacement based on the manufacturer's recommendation, it is advisable to schedule the service promptly.

Regularly inspecting the timing belt or chain in a Great Wall Wingle 7 helps ensure proper engine timing and prevents potential engine mechanical problems. By visually examining the belt or chain, checking tension and slack, and verifying alignment, you can detect signs of wear, damage, or misalignment. Timely replacement or adjustment of the timing belt or chain is essential for maintaining engine reliability and preventing costly engine repairs. When in doubt or for professional expertise, consult the vehicle's service manual or seek assistance from a qualified automotive technician.

6. Sensor and Control Module Issues

6.1. Examining sensors related to engine starting

Examining the sensors related to engine starting in a Great Wall Wingle 7 is crucial for diagnosing potential sensor and control module issues that may affect the starting process. Sensors play a vital role in providing important data to the engine control module (ECM) to ensure proper fuel delivery and ignition timing. Here's a detailed explanation of how to examine these sensors:

1. Battery Voltage:
- Start by checking the battery voltage using a multimeter. Ensure that the battery has sufficient charge (typically above 12 volts) to provide power to the sensors and control modules.

2. Crankshaft Position Sensor:
- Locate the crankshaft position sensor, which is typically mounted near the engine's crankshaft.
- Inspect the sensor and its wiring for any signs of damage or corrosion. Check that the sensor is securely connected.

3. Camshaft Position Sensor:
- Locate the camshaft position sensor, usually positioned near the engine's camshaft(s).
- Inspect the sensor and its wiring for any visible damage or corrosion. Ensure that the sensor is properly connected.

4. Mass Airflow Sensor:
- Locate the mass airflow sensor, often located between the air filter and the throttle body.
- Inspect the sensor and its wiring for dirt, debris, or damage. Clean the sensor with an appropriate cleaner if necessary.

5. Throttle Position Sensor:
- Locate the throttle position sensor, usually attached to the throttle body.
- Inspect the sensor and its wiring for any signs of wear, damage, or loose connections.

6. Oxygen Sensor:
- Locate the oxygen sensor(s) in the exhaust system, typically before and after the catalytic converter.
- Inspect the sensor and its wiring for any visible damage, corrosion, or loose connections.

7. Coolant Temperature Sensor:
- Locate the coolant temperature sensor, usually positioned near the engine coolant passages.
- Inspect the sensor and its wiring for any signs of damage, corrosion, or loose connections.

8. Manifold Absolute Pressure Sensor:
- Locate the manifold absolute pressure (MAP) sensor, often located on the intake manifold.
- Inspect the sensor and its wiring for any visible damage, debris, or loose connections.

9. Idle Air Control Valve:
- Locate the idle air control (IAC) valve, typically mounted on the throttle body.
- Inspect the valve and its wiring for any signs of damage or loose connections. Clean the valve if necessary.

10. Throttle Body:
- Inspect the throttle body for any visible dirt, debris, or carbon buildup that may affect sensor readings and smooth engine operation. Clean the throttle body if needed.

11. Professional Assistance:
- If you are unsure about the condition or operation of any sensors, or if you suspect sensor-related issues, it is recommended to consult a qualified automotive technician.
- They can perform specialized diagnostic tests using scan tools to assess sensor readings and identify any faulty sensors or control modules.

Examining the sensors related to engine starting in a Great Wall Wingle 7 is essential for identifying potential sensor and control module issues. By inspecting and ensuring the proper connection and condition of these sensors, you can help diagnose starting problems and ensure accurate data transmission to the ECM. Regular maintenance, including cleaning or replacing sensors as needed, can help maintain optimal engine performance. If you encounter persistent starting issues or suspect sensor-related problems, it is advisable to seek professional assistance for thorough diagnosis and repairs.

6.2. Diagnosing issues with the engine control module (ECM)

Diagnosing issues with the Engine Control Module (ECM) in a Great Wall Wingle 7 is essential for identifying potential problems that may affect the vehicle's performance and operation. The ECM, also known as the Engine Control Unit (ECU), is responsible for managing various engine functions by receiving data from sensors and controlling actuators. Here's a detailed explanation of how to diagnose ECM-related issues:

1. Scan Tool Diagnosis:
- Connect a compatible scan tool to the OBD-II (On-Board Diagnostics) port of the vehicle.
- Use the scan tool to retrieve any stored diagnostic trouble codes (DTCs) from the ECM. These codes provide information about specific issues or malfunctions.

2. Interpretation of DTCs:
- Analyze the retrieved DTCs to identify the specific problem areas associated with the ECM. Each code corresponds to a particular system or component.
- Refer to the vehicle's service manual or consult online resources to interpret the DTCs accurately.

3. Visual Inspection:
- Inspect the ECM and its wiring harness for any visible signs of damage, such as loose or corroded connectors, broken wires, or burnt components.
- Ensure that all connections to the ECM are securely fastened.

4. Check Power and Ground Connections:
- Measure the voltage at the ECM's power supply and ground connections using a multimeter. Verify that the voltage levels are within the manufacturer's specified range.
- If there is an issue with power supply or ground connections, check the corresponding fuses and relays.

5. Perform Functional Tests:
- Depending on the available diagnostic capabilities of the scan tool, perform functional tests on the ECM-controlled systems, such as actuating specific components or monitoring sensor readings in real-time.
- Compare the observed results with the expected values to determine if the ECM is functioning correctly.

6. ECM Reprogramming:
- In some cases, ECM-related issues can be resolved by reprogramming or updating the ECM software. This process typically requires specialized equipment and access to the manufacturer's software.

7. Consult Manufacturer's Technical Bulletins:
- Check for any relevant technical bulletins or recalls issued by the vehicle manufacturer regarding ECM-related problems. These resources may provide valuable information and potential solutions.

8. Seek Professional Assistance:
- If you are unable to diagnose or resolve ECM-related issues on your own, it is recommended to consult a qualified automotive technician or the authorized service center.
- They have access to advanced diagnostic tools, technical expertise, and specific knowledge about Great Wall Wingle 7 vehicles.

Diagnosing issues with the Engine Control Module (ECM) in a Great Wall Wingle 7 requires a systematic approach. By utilizing a scan tool to retrieve DTCs, interpreting the codes, visually inspecting the ECM and its connections, checking power and ground connections, performing functional tests, and considering manufacturer's technical bulletins, you can identify potential problems with the ECM. However, if the diagnosis process becomes complex or the required repairs involve ECM reprogramming, seeking professional assistance is advisable to ensure accurate diagnosis and proper resolution of the issues.

6.3. Evaluating the immobilizer system, if equipped

Evaluating the immobilizer system in a Great Wall Wingle 7, if equipped, is crucial for identifying potential issues that may affect the vehicle's security and starting process. The immobilizer system is designed to prevent unauthorized access to the vehicle by disabling the engine's ignition system. Here's a detailed explanation of how to evaluate the immobilizer system:

1. Check Immobilizer Indicator:
- Before starting the evaluation, check if your Great Wall Wingle 7 is equipped with an immobilizer system. Look for an immobilizer indicator on the instrument cluster, typically in the form of a key-shaped icon or a "Security" light.

2. Check Immobilizer Key:
- The immobilizer system requires a specific key with a built-in transponder chip. Ensure that you are using the correct immobilizer key that is programmed to work with your vehicle.
- If you have multiple immobilizer keys, test each key to determine if the problem lies with a specific key or the immobilizer system itself.

3. Test Key Recognition:
- Insert the immobilizer key into the ignition and turn it to the "On" position without starting the engine.
- Observe the immobilizer indicator on the instrument cluster. It should illuminate briefly and then turn off if the key is recognized by the system. If the indicator continues to flash or remains illuminated, it may indicate a problem with the immobilizer system.

4. Check Battery Power:
- Ensure that the vehicle's battery has sufficient charge. A weak or low battery can sometimes cause issues with the immobilizer system.
- If the battery is low, recharge it or replace it if necessary.

5. Inspect Immobilizer Antenna and Wiring:
- The immobilizer system relies on an antenna to communicate with the key's transponder chip. Inspect the immobilizer antenna and its wiring for any visible damage or loose connections.
- Make sure that the antenna is properly mounted and not obstructed by any objects.

6. Immobilizer System Reset:
- In some cases, a reset of the immobilizer system may resolve temporary glitches. Disconnect the vehicle's battery for a few minutes and then reconnect it. This can reset the immobilizer system and allow it to reestablish communication with the key.

7. Professional Assistance:
- If you are unable to diagnose or resolve immobilizer system issues, it is recommended to consult a qualified automotive technician or the authorized service center.
- They have access to specialized diagnostic equipment and technical knowledge specific to the Great Wall Wingle 7, allowing them to accurately diagnose and repair immobilizer system problems.

Evaluating the immobilizer system in a Great Wall Wingle 7 involves checking the immobilizer indicator, testing the immobilizer key recognition, checking battery power, inspecting the immobilizer antenna and wiring, and performing a system reset if necessary. If the problem persists or if you require advanced diagnostic procedures, seeking professional assistance is advisable. A trained technician can help identify the root cause of the immobilizer system issues and provide the appropriate solutions to ensure proper functioning and security of the vehicle.

7. Conclusion

In conclusion, the Great Wall Wingle 7 is a versatile and reliable vehicle that offers various features and capabilities. It is essential to regularly inspect and troubleshoot different components and systems to ensure optimal performance and address any potential problems that may arise.

When encountering issues with the Wingle 7, it is crucial to follow a systematic approach to diagnose and resolve the problem. From checking the battery and electrical system to evaluating the fuel system, ignition system, engine mechanical components, and sensor and control module issues, each troubleshooting step plays a vital role in identifying the root cause of the problem.

By conducting visual inspections, testing connections, using diagnostic tools, and referring to manufacturer guidelines and technical resources, car owners and technicians can effectively pinpoint and address the specific issues affecting the vehicle.

Additionally, seeking professional assistance from qualified automotive technicians or authorized service centers is recommended for complex problems or when specialized equipment and expertise are required.

Regular maintenance, including oil and filter changes, fluid level checks, and following recommended service intervals, is crucial for keeping the Great Wall Wingle 7 in optimal condition and preventing potential problems.

Remember to consult the vehicle's owner's manual, manufacturer's guidelines, and authorized service centers for accurate and specific information regarding the Great Wall Wingle 7's maintenance, troubleshooting, and repairs.

By staying proactive in maintenance and promptly addressing any issues that arise, owners of the Great Wall Wingle 7 can enjoy a reliable and enjoyable driving experience for years to come.

FAQ: Frequently Asked Questions about Great Wall Wingle 7 Starting Issues

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