GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 55474  Size: SH
  1. Loosen the clamp and separate the air cleaner inlet elbow from the turbocharger inlet elbow.

  2. Object Number: 55485  Size: SH
  3. Release the clips holding the air cleaner cover to the housing.

  4. Object Number: 63702  Size: SH
  5. Remove the MAF sensor electrical connector (L56 only).

  6. Object Number: 63699  Size: SH
  7. Remove the air cleaner filter with air inlet elbow attached.
  8. Separate the air inlet elbow from the filter by pulling apart.
  9. • Inspect the CDR hose for cracks or binds.
    • Inspect the air cleaner cover seals for damage.
    • Inspect the air cleaner filter for damage or excessive dirt accumulation.
    • A high capacity air filter can be used if necessary (AC type A 1306C).

Installation Procedure

  1. Install the air inlet elbow on the filter by pushing on the inlet elbow.
  2. Install the air cleaner filter with the air inlet elbow attached into the housing.

  3. Object Number: 63702  Size: SH
  4. Install the MAF sensor electrical connector (L56 only).

  5. Object Number: 55485  Size: SH
  6. Install the air cleaner cover into the housing and clip into place.

  7. Object Number: 55474  Size: SH
  8. Install the air cleaner inlet elbow into the turbocharger inlet elbow.
  9. 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.

  10. Tighten the elbow clamp.
  11. Tighten
    Tighten the elbow clamp to 5 N·m (45 lb in).