GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 GTO 🢒 Preface 🢒 Cautions and Notices 🢒 Air Cleaner Assembly Replacement

Removal Procedure

    Object Number: 1553639 Size: SH
  1. Disconnect the wiring harness connector (2) to the intake air temperature (IAT)/mass air flow (MAF) sensor (1).

    2. Object Number: 1553642 Size: SH
  2. Loosen the clamp securing the air intake duct to the throttle body (5), then loosen the clamp securing the MAF sensor to the air cleaner upper body (2).
  3. Remove the duct together with the IAT/MAF sensor still installed.

    4. Object Number: 1556482 Size: SH
  4. Remove 3 retainer screws (1) securing the air cleaner upper body (2).
  5. Remove air cleaner upper body and air cleaner filter assembly.

    6. Object Number: 1556476 Size: SH
  6. Remove the 3 retainer screws (1) securing the air cleaner lower body to the fender inner panel insulators.
  7. Remove the air cleaner air inlet duct (2) from lower body, then remove air cleaner lower body.

Installation Procedure

    Object Number: 1556476 Size: SH
  1. Install the air cleaner lower body onto the mounting insulators.
  2. Install the air cleaner inlet duct (2) to the lower air cleaner lower body (3).

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the retaining screws (1) and tighten to the correct torque specification.

    4. Tighten
    Tighten the air cleaner lower housing to 10 N·m (89 lb in).


    Object Number: 1556482 Size: SH
  4. Install the air cleaner element (4) into the air cleaner upper body (2) and place the upper body onto the lower air cleaner body.
  5. Install the 3 retaining screws (1) securing the upper air cleaner body to the lower and tighten to the correct torque specification.

    6. Tighten
    Tighten the air cleaner upper housing to 5 N·m (44 lb in).


    Object Number: 1553642 Size: SH
  6. Install the intake air duct and IAT/ MAF sensor (3) to the throttle body and upper air cleaner body (1). Install and tighten both duct clamps (2 and 5) to the specified torque.

    7. Tighten
    Tighten the intake air duct clamp to 2 N·m (18 lb in).


    Object Number: 1553639 Size: SH
  7. Reconnect wiring harness connectors (2) to the IAT/ MAF sensor (1).