Two problems related to manifold/header/muffler/tail pipe have been reported for the 2006 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 GMC Yukon based on all problems reported for the 2006 Yukon.
Noise coming from drivers side like lifter noise found first two bolts on the head broken for the manifold.
Recently, my check engine light came on in my 2006 Yukon denali xl w/ a 6. 0 engine. The diagnostic test showed a gas cap problem. However, this did not fix the issue. Several weeks later, the engine started making what sounded like a clicking sound. Upon further investigation, it was discovered that there was a leak in the driver's side exhaust manifold. While in the shop, the mechanic discovered 2 bolts that were broken on the driver's side and it was found that one of the bolts on the passenger side is broken, but the passenger side exhaust manifold was not yet leaking. The auto shop was able to extract one of the bolts, but has found it impossible to remove the other on the driver's side without pulling the engine. This is a necessary repair because improper exhaust is a direct violation of epa standards. Furthermore, engine fires can result from this type of issue. Upon further research, I have found numerous other gm vehicle owners with a similar exhaust manifold bolt problem. In fact, there is a video created by carquestions on this exact issue. . Read more...
| Engine And Engine Cooling problems | |
| Car Stall problems | |
| Engine Exhaust System problems | |
| Manifold/header/muffler/tail Pipe problems | |
| Engine Clicking And Tapping Noises problems |