Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
HI there, I am Cam. "Can You tell me your first name?Also with your no start, what is the history to this? Was it all at once or have you been having issues prior to this ?
OK James, did you check spark at the cylinders or off the cow pack itself?
Ok, flashing light to indicate coil is getting ground signal. May I ask what you used for your spark tester?
Can I ask what you used to check power to the pink? Test light or meter?
IS there a remote starter installed? THE second set of wires that attach have another white wire that may be grounded somewhere else stopping it when plugged in.
Don't worry about that then. You changed out the coil assembly and it made no change?
OK so its likely the injection control module beside the coil pack or wiring. Have you checked any of that?If I were to post diagnosis for this, would you be able to follow those?
OK, its attached in this document.
Yes, its in the spark system. Go through those diagnosis I posted to locate the issue.
Do you see the link 2 posts back?
Yes that code is either an open circuit to the coolant temp sensor or a thermostat that's opening too soon.
What was your cranking RPM on the scan tool what was your cranking RPM on the scan tool? ?
Did the code reader show a cranking RPM or you just guessed at this?
We can only check power and ground at the crank sensor, after that it’s a matter of seeing what speed the Powertrain Control Module (PCM) is seeing. Because the PCM controls the spark and such, if it does not read that speed then it won’t start. Going by the cluster is not valid either, we must see that data.
That still does not show what the PCM is seeing. You may be getting a proper signal, but it that circuit internal to the Powertrain Control Module (PCM) is faulty, it won't show an RPM signal and as such won't run.I understand you don't have a scanner that can read the live data, but I cannot stress enough that we must have that in order to properly complete the diagnosis. Otherwise we will be running in circles guessing at things and likely wasting money guessing at parts to replace next.
Without a scanner, I am not sure how to proceed. I won't simple suggest parts to guess at unless they are cheap and you have done all of those.
There is a chance the PCM is bad, yes, but it must be programmed then setup to the vehicle. Its not something you can on your own at home.
Here it is.