As I back from my garage first thing in the AM. I am getting a crunching sound from the rear of the car as I turn to back from the driveway. At times it feels if there is a slight "hop" of the wheels. The problem isn't noticeable after driving for a while. The sound and feel reminds me of a Corvette that I had that had faulty limited slip oil in the positraction differential. GM replaced the oil with one that had the correct additive and the problem stopped.
My local Cadillac dealer could not duplicate the noise even when the car was left overnight to allow a first start check. They have noted the problem for future reference but it still persists. I know that it can't be normal and will appreciate any thoughts or experience that might lead to a solution.
My local Cadillac dealer could not duplicate the noise even when the car was left overnight to allow a first start check. They have noted the problem for future reference but it still persists. I know that it can't be normal and will appreciate any thoughts or experience that might lead to a solution.
