GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 887907  Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  2. Note: When disconnecting more than one sensor, mark the connectors to ensure correct installation. The electrical connectors are physically interchangeable, however, they must be installed to the correct sensor.

  3. Disconnect the electrical connector from the left bank exhaust camshaft position sensor (2).

  4. Object Number: 1247907  Size: SH
  5. Remove the camshaft sensor retaining bolt.
  6. Remove the left bank exhaust camshaft sensor (4).

Installation Procedure


    Object Number: 1247907  Size: SH

    Note: Inspect the camshaft sensor O-ring for wear or damage. If a problem is found, replace the O-ring.

  1. Lubricate the camshaft sensor O-ring with engine oil.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the left bank exhaust camshaft position sensor (4) and retaining bolt. and tighten to 10 N·m (89 lb in).

  4. Object Number: 887907  Size: SH
  5. Reconnect the camshaft sensor electrical connector (2).
  6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  7. Operate the engine and inspect the camshaft sensor for engine oil leaks.