"88 GMC C2500 - ESC Module, issue?
My truck .. running fine, just coasting at 35mph, then , Service Engine Soon light / then ignition or ? stopped ... I thought the truck was going to die, then the light went out and truck ran fine. ( Took about 5 seconds)
The code eluded to the "just adjusted TPS".... and also the ESC ( Electronic Spark Control module)....... The ESC is interconnected to many components, like the TPS.... I am searching for a new ESC, just in case that's the problem, but anyone know of other parts that could also be connected to these parts? I am having a difficult time finding a new ESC....... Suggestions? |
Re: "88 GMC C2500 - ESC Module, issue?
Maybe I over described my question....
The trouble code for this problem involves the TPS & ESC, but other parts will also set the same code. What other components would there be? |
Re: "88 GMC C2500 - ESC Module, issue?
Which transmission does the truck have?
Which engine does the truck have? What code or codes did it set? How did you retrieve the code / codes? |
Re: "88 GMC C2500 - ESC Module, issue?
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I think, #22 ( TPS low signal) but signal not low.... also mentioned ESC module. Code checker was a Snap On. |
Re: "88 GMC C2500 - ESC Module, issue?
Code 22 does not have anything to do with the ESC
First thing is to check and see what code is in the memory. Use a link below if you do not know how to read the codes without a scan tool. http://www.chevytalk.org/fusionbb/sh...php?tid/273660 http://67-72chevytrucks.com/vboard/s...5&postcount=11 Then clear the code. Verify the code is cleared. Drive the vehicle and see if the code returns. Code 22 can be set by a bad TPS or a poor connection to the TPS. Have you moved the throttle stop screw? |
Re: "88 GMC C2500 - ESC Module, issue?
The TPS is good / adjusted on the high side. The ESC also showed problems, as per a Snap On code reader. There's about 5 components that can affect the code.
( code was cleared)..... The truck lost ignition for 5 seconds, causing the code, but a TSP will not create that symptom. An OBD 1 system is like a house. A code will tell you what room in the house is in defect, but sometimes it WON'T tell you what, "in the room is bad".... ( I do not see a OBD1 code specifically for an Electronic Spark Control module) ....unless it is described differently in the list? ( I appreciate the ideas..... just trying to solve this) |
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