GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.
I suspect you have a dead short with the battery cables with wiring shorted on the engine area.It does sound like they connected the ground properly as one should go to the back of the cylinder head and one to the frame.
Did they inspect all wiring in the engine bay area for any damaged or shorts at all?
Let me know,thanks Pete
Most likely the service writer typed in ground to coil but what was done was ground to engine block and ground to frame.Sometimes they type it up incorrectly after the repair is done.
When the battery and cables are hot like this here this indicates there is a short from ground to power leading to the battery or that there is still a poor ground issue.
Can you take a picture of this ground wire and post it here at all?
No problem.I will be here most of the day as well as all week.Reply when your ready.
This is a tough one for me to answer myself here.
I will open your question up for others here to see if someone else can assist further on this as there may be others here that may have more info on what to check or do with this issue.I hope you can get this resolved with ease.No need to reply to my last post here unless it is a last resort as it will keep your question locked to me and others will not be able to view it.If you feel you want to continue to work with me on this feel free to reply at any time but keep in mind in some cases it can be difficult to fully diagnose or help repair this without seeing your vehicle.
Hello and welcome! Different tech here. I would like to help you diagnose this no power problem. Are you saying that the engine cranks but does not start? Or does it not even crank over and no power to anything?