Questions & Answers for: Isuzu Ascender what is gm code po128

...the right amount. I was thinking it is a float or pump issue, what do yo think? Some of these GM's have a seperate fuel guage relay under the dash. Their not cheap. Since you could have

...code PO128 is given...help!! that code means that the coolant is cooler than it is supposed to be and it cannot be regulated...which means the thermostat is stuck open or broken,so replace the ...

locate the thermostat housing on 4.2 gm 6 cyl 2004 trailblazer Follow the top radiator hose from the radiator to the housing where it bolts onto the engine...this is your thermostat housing. Good Luck

...It sounds as though it isnt finding home or ground / Possibly shorted control switch . i know on GM. trucks that when wet.or damp the delay would short if dried out with hair drier would shout

...po128 code changed thermostat and coolant sensor. ligt comes back on with the same code after three months. any suggestions Code P0128 simply means that the computer has not seen a large enough rise ...

...this circuit board but now my window is down and I can't afford to have it fixed. When is GM going to fix these problems? the tank sending unit works off a resistor to read the amount of ...

...BOARD OR CIRCUIT BOARD? Can get the whole assembly at the junkyard, I did for my Trailblazer. GM issued a recall for this issue as rain can get in there and short and or cause a fire. Your ...

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same on all cars, you meant 2004 engine right, but no engine stated. ok 4.2L I-6, LL8 by GM. used on also.

...Motors for Isuzu. Introduced for the 2003 model year, the 7-passenger Ascender was a re-badged GMC Envoy.

take it to GM.
they know what to do with