GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Disconnect the mass air flow (MAF) sensor electrical connector.
  2. Loosen the air intake duct/MAF sensor hose clamps.
  3. Remove the air intake duct/MAF sensor assembly (1).

  4. Object Number: 512027  Size: SH
  5. Unsnap the 2 housing cover retaining clamps.
  6. Remove the air cleaner cover (2) and carefully remove the air filter element (3).
  7. Inspect the housing cover, seal assembly, and air ducting for damage. If a problem is found, replace as necessary.

Installation Procedure


    Object Number: 512027  Size: SH
  1. Carefully install the air filter element (3) into the air cleaner assembly.
  2. Install the housing cover (2) and snap the retaining clamps in place.
  3. Install the air intake duct/MAF sensor assembly (1).
  4. Tighten the air intake duct/MAF sensor hose clamps.
  5. Connect the MAF sensor electrical connector.