GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1839729  Size: SH
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  2. Remove the air conditioning (A/C) line push pin retainer and reposition the line out of the way.
  3. Loosen the bank 1 intake camshaft position (CMP) actuator solenoid valve bolt enough to disconnect the engine wiring harness electrical connector from the CMP actuator solenoid valve.
  4. Disconnect the engine wiring harness electrical connector (7) from the CMP actuator solenoid valve.

  5. Object Number: 1285237  Size: SH
  6. Remove the CMP actuator solenoid valve bolt.
  7. Remove the CMP actuator solenoid valve.
  8. Inspect the CMP actuator solenoid valve seal and replace as necessary.

Installation Procedure


    Object Number: 1285237  Size: SH
  1. Inspect the CMP actuator solenoid valve seal for damage. Replace the seal if necessary.
  2. Install the CMP actuator solenoid valve.
  3. Loosely install the CMP actuator solenoid valve bolt.

  4. Object Number: 1839729  Size: SH
  5. Connect the engine wiring harness electrical connector (7) to the bank 1 intake CMP actuator solenoid valve.
  6. Caution: Refer to Fastener Caution in the Preface section.

  7. Tighten the CMP actuator solenoid valve bolt to 10 N·m (89 lb in).
  8. Position the A/C line and install the push pin retainer.
  9. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.