GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .

  3. Object Number: 1815153  Size: SH
  4. Disconnect the engine wiring harness electrical connector (1) from the exhaust camshaft position (CMP) sensor.

  5. Object Number: 1578483  Size: SH
  6. Remove the exhaust CMP sensor bolt. (Intake CMP shown, exhaust CMP similar).
  7. Remove the exhaust CMP sensor.

Installation Procedure


    Object Number: 1578483  Size: SH

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

  1. Lubricate the exhaust CMP sensor O-ring seal with clean engine oil.
  2. Install the exhaust CMP sensor. (Intake CMP shown, exhaust CMP similar).
  3. Notice: Refer to Fastener Notice in the Preface section.

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


    Object Number: 1815153  Size: SH
  6. Connect engine wiring harness electrical connector (1) to the exhaust CMP sensor.
  7. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  8. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .