Three problems related to manifold/header/muffler/tail pipe have been reported for the 2005 Chevrolet Silverado. The most recently reported issues are listed below.
Exhaust manifold bolts breaking leaving studs in the heads, heating up engine compartments, releases carbon monoxide, affects O2 sensor and catalytic converter. Will not pass emissions in some states. Gm not standing behind this 1999-2008 issue. It is a safety issue and is expensive to fix. Gm mechanics denying any such issues. Please check- in to this. Our whole fleet and our personal trucks affected by this.
Exhaust manifold bolts breaking off leaving studs in the heads heating up engine compartment, releases carbon monoxide, affects O2 sensor and catalytic converter, will not pass emissions in some states. Gm not standing behind this 1999-2008 issue. It is a safety issue and is very expensive for us to fix. Gm mechanics say they have not heard of this issue. Please check in to this.
This is the second time it has happend, my exhaust manifold bolt breaks.