GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Intake Manifold Disassemble

    Object Number: 1310056 Size: SH
  1. Remove the vacuum plug (513).

    2. Object Number: 1310037 Size: SH
  2. Remove the throttle body nuts (503).
  3. Remove the throttle body (502) and gasket (501).
  4. Discard the gasket.
  5. Remove the throttle body studs (504), if required.

    6. Object Number: 471023 Size: SH
  6. Remove the manifold absolute pressure (MAP) sensor bolt and MAP sensor.
  7. Inspect the MAP sensor seal for damage.

    8. Object Number: 471013 Size: SH
  8. Remove the evaporative emission (EVAP) tube.

    9. Object Number: 471015 Size: SH
  9. Remove the EVAP purge valve and bolt.
  10. Inspect the O-ring seal for damage. Replace as needed.