1995 isuzu bighorn
1995 isuzu bighorn
1995 isuzu bighorn
1995 isuzu bighorn
1995 isuzu bighorn
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1995 Isuzu Bighorn 4x4 not engaging problems in New Zealand

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Date:January 19, 2013, 3:32 am
Name:krautkopf
Location:New Zealand, timaru
Vehicle:Isuzu Bighorn
Year:1995
Problems:hi, i recently got stuck in a river. mate towed me out and we noticed, that 4wd is not working.
the dashboardlight (symbol for 4wd) seems to be faulty as well, because it "comes and goes" without me actually engaging the 4wd.
i've swaped oil of differental, front and rear. also replaced the vacuum piping and cleaned the shifter. both didn't solve the problem.
it is, however, still possible to manualy engage the shifter (front axis) and once engaged, 4wd works fine.
could this be a electrical issue?
or maybe the airpressure is just not high/strong enough to shift from 2wd to 4wd?
has anybody ever had a simmilar problem?
really need your help guys...

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September 26, 2021, 1:41 am  from: Duncan
I have the exact same issue with a 1995.
I do not have a solution for you but have tract down the fact that there is no vacum going to the diaprahm situated on the left of the front axle casing, which is the motivator for the 4x4 interaction. I will be looking deeper and let you know and if you have any comments let me know.
It is my understanding that the vacum is created by the alternator. and that the diaprahm in the activator may have a tear in it.
Cheers and good luck.
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Updated on April 20, 2024