GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1201537  Size: SH
  1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Remove the positive crankcase ventilation (PCV) hose from the intake manifold and valve rocker arm cover.

  3. Object Number: 1235681  Size: SH
  4. Remove the vent hose from the throttle body and the valve rocker arm cover.
  5. Replace the hose as necessary.

Installation Procedure


    Object Number: 1235681  Size: SH
  1. Install the hose as necessary.
  2. Install the vent hose to the throttle body and the valve rocker arm cover.

  3. Object Number: 1201537  Size: SH
  4. Install the PCV hose to the intake manifold and valve rocker arm cover.
  5. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .