GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Other than checking for a worn grommet and loose electrical connectors, the only service possible is a unit replacement if the diagnosis shows a malfunctioning manifold absolute pressure (MAP) sensor.

  1. Turn OFF the ignition.

  2. Object Number: 12817  Size: SH
  3. Disconnect the MAP sensor harness connector.

  4. Object Number: 10933  Size: SH

    Notice: Do not rotate or pry on the MAP sensor when removing. Damage to the MAP sensor or the intake manifold may result.

  5. Remove the MAP sensor by pulling straight up with a slight rocking motion.
  6. Remove the MAP sensor grommet.
  7. Discard the MAP sensor grommet.

Installation Procedure

  1. Install the new MAP sensor grommet on the MAP sensor.

  2. Object Number: 10933  Size: SH
  3. Install the MAP sensor.

  4. Object Number: 12817  Size: SH
  5. Connect the MAP sensor harness connector.