Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is Bobby. Thank you for the question. Can you tell me if the clunk you are hearing is very loud or is it more subtle? Is this an all wheel drive model?
Does the check engine light ever come on when this occurs?
That is a little much to just junk it. Did they happen to give you the codes?
The codes would really help. Most of the time when you get a large number of codes like this it is an electrical or module issue. The PCM or the BCM might be failing. It would be hard to tell without the codes.
Thank you. From those codes you can have a series of problems. What concerns me the most is the transmission codes. These typically mean that there is some slippage in the transmission. Most of the time this is a serious issue. Did you plan on trying to diagnose and fix this yourself?
You can get P codes even with other issues such as a voltage issue or bad grounds. Before doing anything I would start by making sure that the battery and cables are definitely fine and clean as many of the connections as you can. Then I would move on to the ignition switch first as it is a much less expensive common failure on this vehicle.
These can cause the stability system to kick in. The noise you are hearing may be the system itself.