Quote Originally Posted by DFBrews View Post
Figured it out broken valve spring #3 intake going to swap it out and see what happens. I did bore scope the hole and it doesn't appear to have hit the piston
Good catch. I used to replace a lot of broken valve springs on the 3.8 V-6 engines back in the early to mid 1990's. I haven't heard of the 5.3 breaking valve springs. Is this a fairly common problem or did you just happen to have one fail?