Two problems related to manifold/header/muffler/tail pipe have been reported for the 1999 Chevrolet C/k Pickups. The most recently reported issues are listed below.
Exhaust manifold bolts are snapping off one by one. This is causing exhaust fumes to enter the cab of the truck making the driver sleepy or sick from the fumes. After talking to g. M mechanics a lot of the chevy 3/4 ton with 6. 0 motors are doing this. This is a bad safety issue. G. M denies there is a problem.
Rear bolt on exhaust heads broke causing leaks on both exhaust heads on 6 liter engine.
| Manifold/header/muffler/tail Pipe problems | |
| Radiator Hose problems | |
| Engine problems |