GMC Troubleshooting Questions? Ask a Mechanic for Answers
I am sorry your having this problem
when this happens is it physically the starter you hear click ?
how do you end up getting it started when its doing this ?
if you put your fingers on the starter / crank relay in the under hood fuse box do you feel that relay click with your fingers when you hold the key to crank ?
Hi, My Name is ***** ***** for posting your question to just answer. I am a ASE Certified Master Auto Technician with 20 years experience. I am confident we can resolve your problem together.Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution.I also try to give all of the information you may need expecting a positive rating.
Do you have a test light or a scanner?
I do not know how I can help if I cant give you things to check. Please advise as to how you want to proceed. It is my suspicion you either have an ignition switch problem, A fusible link problem or a BCM problem. Basic testing with a test light could narrow it down.
Body control Module, It controls power to several of things you are having problems with.
When you replaced the switch was it a genuine GM or an aftermarket?
I am not a big fan of dealers especially with older cars. I would suggest the local garage. I would make sure they are capable of programming anything that may need to be programmed. The BCM will need to be programmed if it is bad as well as the ignition switch. If your local garage is going to send to dealer anyway for programming you may as well send it there. Many local shops now do their own programming. A few phone calls to local shops may save you lots over the dealer.
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.
Do you still need help with this here?
Let me know so we can continue,thanks Pete.
I apologize for the delay as I was off line the past couple of days.
I dont see this PIT on your model here.Can you double check the PIT number for this for me?
O.k.,I do not see this PIT coming up on your model here but this is a very good possibility of what is causing this issue here.This PIT does fit some of the 2006 Envoy but for some reason isnt coming up on yours here.Here is the info and the repair is to replace the complete starter assembly.This should be done.
Some customers may comment of a no crank no start or delayed crank concern. This concern may be intermittent and difficult to duplicate. Vehicle will store no DTCs and display no indicators for any fault or failure. Battery will be fully charged and show no evidence of being weak. This concern may be caused by a poor ground solder joint at the starter solenoid. This is the connection between the starter motor and the solenoid.
Using a test light, check for power on circuit 5 at the starter motor solenoid when the concern is current. This is the purple wire from starter relay to the starter solenoid. Refer to SI document(###) ###-####as needed. If power is present at the starter solenoid, suspect a poor ground solder joint at the starter solenoid. Replace the starter motor with current SPO parts.
Let me know if you need anything else and feel free to rate my help.