GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2009
🢒
Sierra - 4WD
🢒
Engine
🢒
Engine Mechanical - 6.6L
🢒 Exhaust Pipe Cleaning and Inspection
Clean the exhaust pipe.
Clean the exhaust pipe mating surfaces.
Inspect the exhaust pipe for dents or cracks.
Replace the exhaust pipe if any damage is found.