GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 HHR 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Camshaft Position Actuator Solenoid Valve Replacement

Removal Procedure

    Object Number: 1647538 Size: SH
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  2. Disconnect the intake (3) or exhaust (2) camshaft position actuator solenoid valve electrical connector, as required.

    3. Object Number: 1578482 Size: SH
  3. Remove the exhaust (1) camshaft position (CMP) actuator solenoid valve bolt and valve, as required.
  4. Remove the intake (2) CMP actuator solenoid valve bolt and valve, as required.
  5. Inspect the solenoid valve O-ring seals from damage, replace as necessary.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1578482 Size: SH
  1. Lubricate the solenoid valve O-ring seals with clean engine oil.
  2. Install the intake (2) CMP actuator solenoid valve and bolt, as required.

    3. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  3. Install the exhaust (1) CMP actuator solenoid valve and bolt, as required.

    4. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1647538 Size: SH
  4. Connect the intake (3) or exhaust (2) camshaft position actuator solenoid valve electrical connector, as required.
  5. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .