GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Engine 🢒 Engine Mechanical - 6.5L 🢒 Intake Manifold Cleaning and Inspection
  1. Remove the MAP sensor from the intake manifold (if equipped).
  2. Remove the IAT sensor from the intake manifold (if equipped).
  3. Clean the old pieces of gasket from the gasket surfaces.
  4. Clean the soot deposits from the intake manifold.
  5. Inspect the manifold for the following conditions:
    6. • Cracks
    • Broken flanges
    • Gasket surface damage