GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1372118  Size: SH
  1. Disconnect the wiring harness connectors to the intake air temperature (IAT) sensor (3) and the mass air flow (MAF) sensor (2).
  2. Loosen the clamp securing the air intake duct to the throttle body, then loosen the clamp securing the MAF sensor to the air cleaner upper body.
  3. Remove the duct together with the IAT sensor and the MAF sensor still installed.

  4. Object Number: 1372232  Size: SH
  5. Remove 3 retainer screws securing the air cleaner upper body .
  6. Remove air cleaner upper body and air cleaner filter assembly.
  7. Remove the 3 retainer screws securing the air cleaner lower body to the fender inner panel insulators.

  8. Object Number: 1372207  Size: SH
  9. Remove the air cleaner air inlet duct (1) from lower body, then remove air cleaner lower body.

Installation Procedure


    Object Number: 1372232  Size: SH
  1. Install the air cleaner lower body onto the mounting insulators.

  2. Object Number: 1372207  Size: SH
  3. Install the air cleaner inlet duct to the lower air cleaner lower body (1).
  4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1372232  Size: SH
  5. Install the retaining screws and tighten to the correct torque specification.
  6. Tighten
    Tighten the air cleaner lower housing to 10 N·m (89 lb in).

  7. Assemble the air cleaner element into the air cleaner upper body and place the upper body onto the lower air cleaner body.
  8. Install the 3 retaining screws securing the upper air cleaner body to the lower and tighten to the correct torque specification.
  9. Tighten
    Tighten the air cleaner upper housing to 5 N·m (44 lb in).


    Object Number: 1372118  Size: SH
  10. Reinstall the intake air duct and MAF sensor to the throttle body and upper air cleaner body. Reinstall and tighten both duct clamps to the specified torque.
  11. Tighten
    Tighten the intake air duct clamp to 2 N·m (18 lb in).

  12. Reconnect wiring harness connectors to the IAT (3) and MAF sensors (2).