GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 12952  Size: SH
  1. Remove the air cleaner outlet resonator mounting screws.
  2. Disconnect the air cleaner outlet resonator clamp at throttle body.
  3. Remove the air cleaner outlet duct from air cleaner outlet resonator and air cleaner assembly.
  4. Disconnect the crankcase vent hose from the air cleaner outlet resonator.
  5. Remove the air cleaner outlet resonator.

Installation Procedure


    Object Number: 12952  Size: SH
  1. Connect the crankcase vent hose to the air cleaner outlet resonator.
  2. Important: Be sure that the air cleaner outlet resonator seals to the throttle body.

    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 cleaner outlet resonator to the throttle body.
  4. Tighten
    Air cleaner outlet resonator clamp to 5 N·m (44 lb in).

  5. Install the air cleaner outlet resonator mounting screws.
  6. Tighten
    Tighten the air cleaner outlet resonator mounting screws to 10 N·m (89 lb in).

  7. Install the air cleaner outlet duct to the air cleaner outlet resonator and the air cleaner assembly.
  8. Tighten
    Tighten the air cleaner outlet duct clamps to 5 N·m (44 lb in).