GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2002
🢒
Jimmy - 2WD
🢒
Engine
🢒
Engine Mechanical - 3.1L
🢒 Exhaust Manifold Cleaning and Inspection
Inspect the exhaust manifold mating surface for flatness.
Inspect the exhaust manifold for cracks or damage.
Replace the exhaust manifold if necessary.