Engine Mechanical problem
2001 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 74500 miles
I have a 3.1L gran prix se the engine pings and the noise does not go away when the engine gets warm. We have tried new lifters, did a valve job measured the cam lobes, checked push rods, rocker arms etc. We are just baffled with this. When we loosened one of the front rocker arm bolts and the noise went away. On the front head
have the same problem?
Thursday, April 23rd, 2009 AT 2:25 PM