Quote:
Originally Posted by wrankin
Resurrecting this old thread - I got mine for the first time sitting in traffic. The difference is my car is warmed up, and the temperature was above 80 degrees. One time it felt like someone bumped me from behind, and I looked in the rearview mirror just to check. I also think I am noticing some transmission noise.
Did the dealer identify and resolve the issue? I am curious as to the diagnosis and any details you guys can provide.
BTW I had the transmission triple flushed for the shudder. So far so good on that. I also had the rearend groan, and had the fluid flushed on that twice. It is still happens on cold mornings, but not quite as bad.
Bill
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it is a common issue in which gm will say its a vehicle "characteristic". same with the rear groan.