Manifold/header/muffler/tail Pipe problems of the 1999 GMC Sierra

Three problems related to manifold/header/muffler/tail pipe have been reported for the 1999 GMC Sierra. The most recently reported issues are listed below.

1 Manifold/header/muffler/tail Pipe problem

Failure Date: 02/02/2004

Two broken manifold bolts in rear drivers side of engine on 5. 3 vortec engine, exhaust leak from where manifold has separated form head. Carbon buildup and discoloration visible. High temp exhaust being released under the hood. Appears to be a very common complaint on many gm vehicles and model years.

2 Manifold/header/muffler/tail Pipe problem

Failure Date: 11/07/2003

Faulty braking system engine noise muffler replace instrument panel fault tire wear transmission automatic shifting rearend noise.

3 Manifold/header/muffler/tail Pipe problem

Failure Date: 01/10/2003

Fuel pump will over heat and than short out. Exhaust always rattles engine knocks cat. Converters went out digital display stopped working.




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