Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner past midnight.
Will it at least crank?
Are there codes stored?
Did you remove the engine to get the transaxle out?
Any way you can get it scanned to see which codes are stored?
This warning normally comes on when the computer detects something wrong that could result in engine damage like a failure of the throttle body, coolant temp reading or oil pressure reading.
This is my 1st answer of what can be many. You the website and myself expect you to have a ~~~5 STAR EXCELLENT~~~ experience with my help. At the top of your screen is the rating box that you only get to use once. Please make sure to complete the mandatory rating when ready or reply and say "I am pleased with my answer". Not rating or rating 1-2 stars does not benefit you nor me in any way.
Are you able to check the fuel pressure, ignition spark, and injector pulse to see which is missing?
No spark can be caused by no crank sensor signal getting to the PCM. Have you checked that sensor?
Let me know the results of checking out the CKP sensor.
You may find the only way to figure this out is going to require a better scan tool.
What liter engine do you have?
A scan tool is needed to perform the CKP variation relearn procedure.
The GM tech 2 scan tool is the preferred tool.
You can purchase a snap on tool that can be used on all makes and do most all features that a dealer scan tool can perform.
Yes this can be one of the causes for a crank no start concern.
Replacing parts without being able to diagnose they are in fact to blame is going to cost you alot of money and time. Do you know anyone with a better scan tool?
Key on, one coil unplugged.
At #1 is the black wire ground, brown wire ground, pink/black wire power?
Hello again Chris here,