GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 480923  Size: SH
  1. Loosen the clamp holding the MAF sensor to the air intake resonator duct.
  2. Remove the duct from the MAF sensor.

  3. Object Number: 308131  Size: SH
  4. Remove the air inlet tube and resonator retaining wingnut.

  5. Object Number: 308130  Size: SH
  6. Remove the air inlet tube and resonator from the throttle body by pivoting the air inlet tube and resonator upward until the hinge clip releases from the lip on the throttle body.

Installation Procedure


    Object Number: 308130  Size: SH
  1. Align the hinge clip with the lip on the throttle body.
  2. Install the air inlet tube and resonator to the throttle body by pivoting the air inlet tube and resonator downward until the mounting stud is through the hole in the air inlet tube.


    Object Number: 308131  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the air inlet tube and resonator retaining wingnut.
  4. Tighten
    Tighten the wingnut to 2 N·m (18 lb in).


    Object Number: 480923  Size: SH
  5. Install the air intake resonator duct to the MAF sensor.
  6. Tighten
    Tighten the clamp to 4 N·m (35 lb in).