GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC P42 Commercial Chassis 🢒 Engine 🢒 Engine Mechanical - 6.5L 🢒 Exhaust Manifold Cleaning and Inspection

Exhaust Manifold Cleaning and Inspection for GMC Truck GMC P42 Commercial Chassis 1998

  1. Clean the sealing surfaces.
  2. Clean the soot deposits from the exhaust manifold.
  3. Inspect the manifolds for the following conditions:
    4. • Cracks
    • Broken flanges
    • Sealing surface damage