GMC Troubleshooting Questions? Ask a Mechanic for Answers
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner till early morning.
What is the injector pump actual and desired pressure reading while cranking?
Those pressure readings are they actual or desired?
Have you done the diagnostics for code 0336?
Thanks, ***** ***** and desired match when cranking at 10k.
Have you done a compression test manually or with a scan tool?
I do not believe I can figure this one out. I will opt out so another can try.
Hi there, I am Cam. Do you still need assistance?
Does your scanner show engine RPM while cranking?
Ok, it should show RPM. Is there damage to the reluctor wheel?
My first thought is that there is a loss of signal but why, is it the PCM not recognizing it? Is it a bad connection? Loss of power? Loss of ground? If you crank it for the 15 seconds, does it set any codes?
Ok, have you followed through any set diagnosis for the no start?
The computer should not need refreshing, it does not loose its programming. Let me ask this, is your scanner able to read body codes?