Various thoughts on this. The 3.4s tend to be a little ticky.
This may be a case of piston slap.
There have been upgraded pistons with a teflon coating used.
Another possiblility is a bad cam, but I would expect the noise to stop.
I have heard of some shops going to a synthethic and using an ac delco oil filter as a cure. I haven't myself.
Monday, July 20th, 2009 AT 5:18 PM