GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1647999  Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement.
  2. Disconnect the exhaust camshaft position (CMP) sensor electrical connector (1).

  3. Object Number: 1578483  Size: SH
  4. Remove the CMP sensor bolt. Intake CMP shown, exhaust CMP similar.
  5. Remove the CMP sensor.

Installation Procedure


    Object Number: 1578483  Size: SH

    Important: Inspect the CMP sensor for damage, replace as necessary.

  1. Lubricate the CMP sensor O-ring seal with clean engine oil.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the CMP sensor. Intake CMP shown, exhaust CMP similar.
  4. Install the CMP sensor bolt.
  5. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1647999  Size: SH
  6. Connect the exhaust CMP sensor electrical connector (1).
  7. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement.