One problem related to manifold/header/muffler/tail pipe has been reported for the 2011 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 GMC Sierra 1500 based on all problems reported for the 2011 Sierra 1500.
Heat sheald on exhaust manifold rusted and fell off engine resting on steering column locking steering momentarily untill I forced it to work. Car was in motion when this happened.
| Engine And Engine Cooling problems | |
| Check Engine Light On problems | |
| Engine Stall problems | |
| Manifold/header/muffler/tail Pipe problems | |
| Engine Rattling And Whining Sounds problems | |
| Emission Control problems |