Rattling Vibration 1800-2000 RPM

[tslevin95]

I'm pretty sure I found the cause of the vibration at 1800-2000 RPM.


The lower bolt of the exhaust manifold heat shield broke off with the threading which created an empty hole where the threading originally was.


Does anybody know the size of the threading?

 

[Happy Hummer]

I'd use a hose clamp. Get the metal stainless steel kind with screw and tighten it down. Or just get rid of the shield.

Chris