GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the engine cover.
  2. Remove the ignition coils. Refer to Ignition Coil Replacement .

  3. Object Number: 824977  Size: SH
  4. Disconnect the 2 Positive Crankcase Ventilation (PCV) hoses from the cylinder head cover.
  5. Remove the 2 nuts and 1 bolt from the ventilation pipe.
  6. Remove the ventilation pipe and gasket.
  7. Remove the 9 bolts, wire harness protector, cylinder head cover and gasket.
  8. Remove the O-ring from the cylinder head cover.

Installation Procedure

    Important: Use a new cylinder head cover gasket and new seal washers whenever the cylinder head cover replacement procedure is performed.

    Ensure that the new gasket and the new seal washers are correctly positioned during the cylinder head cover installation.

  1. Install the new cylinder head cover gasket to the cylinder head cover.
  2. Install a new O-ring to the cylinder head cover.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the cylinder head cover and the wire harness protector to the cylinder head. Secure the cover using 9 bolts.
  5. Tighten
    Tighten the cylinder head cover bolts to 10 N·m (7 lb ft).

  6. Install a new ventilation pipe gasket. Secure the ventilation pipe to cylinder head with the 2 nuts and 1 bolt.
  7. Tighten
    Tighten the ventilation pipe nuts to 10 N·m (7 lb ft).

    Tighten
    Tighten the ventilation pipe bolt to 25 N·m (18 lb ft).


    Object Number: 824977  Size: SH
  8. Connect the two Positive Crankcase Ventilation (PCV) hoses to the cylinder head cover.
  9. Install the ignition coils. Refer to Ignition Coil Replacement .
  10. Install the engine cover.