gimleyd

Hey I got the clicking to stop here is what i did. took off the heat shield and located a crack in the exhaust manifold. then I used a product QuickSteel for high temperature can pick it up at any auto parts store I then mixed it up till it looked like toothpaste. then I let it stand for about four and a half hours before testing I went around the block and the noise was gone. I would let it stand for 24 hours though if I were you before you test it when I tested mine it made a giant bubble. Fortunately it held and I just pushed it back in place.I'm not sure how long it will hold up but for 10 busks and 10 minutes of work time its worth a shot verse 150 bucks and between 1-3 hours of work time. At least we know what the sound is and can fix it now.

It is a crack in my manifold like dealer said took off heat shield and found it

Hi there I have the same problem but I know what it is. Its a cracked exhaust manifold or leak. Take off your heat shild have a friend plug the muffler and listen for any air or fum leaks. I got this info from a Chevy dealer and that's how I found the problem I am going to try to fix it tomorrow with a high temp liquid metal compound. I hope this was helpful and Ill post back with the results of the fix later.