I was on the phone fianlly with a young lady from GM. She said that their engineers have disected the problem and that there is no need to be upset. My vehicle is 470 miles out of warranty. If it was under warranty they would have offered me a 100K engine warrnaty on the vehicle. I really think this is all
but who am I to judge?
I spoke to a mechanic that works for Chevy and he said that the piston skirts have been shortened to compensate for the emissions controls they have put on the engine. Thus the slapping is heard by the piston hitting the cylinder walls. Told me that it will not hurt anything.
Thanks for your input
John Thoden
