Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello. My name is ***** ***** I will be assisting you today. I see that you have done a few things and are overheating still. There are a few things that should be suspected. The thermostat(#4) and the water pump should be suspected, but first, you need to inspect the fans and be sure that both are functioning as it should. If the fans are coming on as they should and you have not noticed any leaks, then the first thing that I would suspect is the thermostat. The water pump will usually start to leak through the weep hole when it begins to fail.
Is the vehicle running rough? Have you removed the belt, and inspected the pulleys to be sure that none are beginning to lock up?
No problem. Yes, if the thermostat is stuck closed, the vehicle would quickly overheat. If the vehicle couldn't cycle the coolant properly, then this will occur.
How does the vehicle run otherwise?
That sounds like a plan. If the pulleys prove to be intact. then I would suggest that you inspect the water pump and the thermostat.
If you require more information on this issue and/or are not satisfied, let me know, please, and I will attempt to assist you further on this. I hope this information points you in the right direction. If you have any further questions or concerns on this issue, feel free to ask. If you are satisfied, and have found this information helpful, a positive rating would be greatly appreciated. Thank you.
That is a definite sign that the clutch is beginning to malfunction, which would explain the overheating.
I'm thinking that there is too much resistance in that pulley.
Yes. If the clutch locks up it will shortly pop the belt. Leaving the vehicle unable to be operated.
Sounds good. Keep me posted. If you need me, I'm here. Also, please, do not forget to rate the service as it is necessary in order for experts to receive credit for answers provided. Thanks again.
Just as a reminder, if you have found this information helpful, please do not forget to rate the service. Thanks again.
I'm here. When the 12v go away, if it disappears completely, then the issue is likely to be the ECM. If you just loses voltage, then the issue could be a faulty wire. Also, to check for the over heating, you need to have the compression tested on the vehicle. The best way to find this type a leak, is to use a smoke machine to inject smoke into the system. This will give a tell tale sign. The idling issue is like due to a vacuum leak. The best way to find a vacuum leak is to also use a smoke machine.
I completely understand. Here, are the specs for compression of the vehicle. I am suspecting the compression and likely a vacuum leak. Both testings will be necessary in order to rule out the possibilities.
That wire is solely for the EGR. Here is the connector view and the connector
It is cylinder compression.
I'm sorry. Here, you are. I thought I had attached this information.
Keep me posted.
Also, please do not forget to rate the service, as it is necessary in order for experts to receive credit for answers provided. Thanks again.
I am glad you have gotten the issue taken care of. You are very welcome. I am always happy to help.