GM Repair Questions? Ask a Mechanic for Answers ASAP
Hello, I'm Chris. Thanks for visiting Just Answer.
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Hi ,Chris. The symtoms my truck has are exactly like a big rig which is set up from govener to don't go faster then 65m/hour. The only deference is that sometimes it goes over 65m/hour. So , the problem is when I drive in the highway and reach 65m/hour it goes limp. When is under 65mph you can press the acceleration and it goes again to 65mph,but not over 65mph. Every time you try to go over 65 mph , it went limp .If you need more info. please let me know or call me at(NNN) NNN-NNNN
I believe in your case the computer has a faulty ROM board and it has moved the speed limiter down to far to 65mph. You should be able to monitor this with a diagnostic tool to verify this prior to replacement.
In your opinion , should I replace the computer or should I try to fix it?
If I get a new computer I should re-program it?
Thank you very much,Mike
You will not be able to fix the computer, and it should be tested prior to replacing and programmed after installed.