GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Malibu 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Camshaft Position Actuator Solenoid Valve Replacement

Removal Procedure

    Object Number: 1890391 Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Disconnect the engine wiring harness electrical connector (1) from the exhaust camshaft position (CMP) actuator solenoid valve (4), if required.
  3. Disconnect the engine wiring harness electrical connector (2) from the intake CMP actuator solenoid valve (3), if required.

    4. Object Number: 1578482 Size: SH
  4. Remove the exhaust (1) CMP actuator solenoid valve bolt and valve, if required.
  5. Remove the intake (2) CMP actuator solenoid valve bolt and valve, if required.
  6. Inspect the solenoid valve O-ring seals for 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, if required.

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

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

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


    Object Number: 1890391 Size: SH
  4. Connect the engine wiring harness electrical connector (2) to the intake CMP actuator solenoid valve (3), if required.
  5. Connect the engine wiring harness electrical connector (1) to the exhaust CMP actuator solenoid valve (4), if required.
  6. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .