One problem related to engine exhaust system has been reported for the 2007 GMC W Series. The most recently reported issues are listed below.
The contact owns a 2007 GMC w4500. The contact stated that the vehicle exhibited a bad exhaust leak. Fumes could emit inside of the cabin. The contact performed the repair himself and replaced the passenger side exhaust manifold. There was significant concern of the safety risks. The failure mileage was approximately 30,000. Updated 05/24/lj the consumer is the mechanic who called in the complaint.
| Engine Exhaust System problems | |
| Manifold/header/muffler/tail Pipe problems |