GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Silverado - 4WD 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Intake Manifold Removal

    Object Number: 1876876 Size: SH
  1. Remove the ignition coil bolts and coil from the bracket.

    2. Object Number: 1876878 Size: SH
  2. If required, remove the ignition coil bracket bolts and bracket.

    3. Object Number: 1970819 Size: SH
  3. Remove the oil pump drive shaft bolt.
  4. Remove the oil pump drive shaft with clamp.

    5. Object Number: 1970820 Size: SH
  5. Remove the oil pump drive shaft gasket and discard.

    6. Object Number: 1523560 Size: SH
  6. Remove the evaporative emission (EVAP) canister purge solenoid valve harness.
    7. 6.1. Push the quick disconnect clip and hold in place.
    6.2. Pull outward on the harness elbow.

    Object Number: 31510 Size: SH
  7. Remove the engine coolant temperature (ECT) sensor wire connector, if equipped, from the engine wiring harness bracket.
  8. Remove the lower intake manifold bolts.

    9. Important: 

       • The intake manifold may be removed as an assembly. Do not remove the specific intake manifold components unless component service is required.
       • Do not allow dirt or debris to enter the fuel system. Ensure that the ends of the fuel system are properly sealed.

  9. Remove the intake manifold assembly.
  10. Remove and discard the lower intake manifold gaskets.