GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 292975  Size: SH
  1. Disconnect the electrical connector (3) from the mass air flow (MAF) sensor .
  2. Loosen the 2 band clamps located on either side of the MAF sensor (4).
  3. Disconnect the intake air duct of the throttle body from the MAF sensor.
  4. Notice: Do not damage the MAF sensor screen. A damaged screen could restrict airflow and lead to a driveability concern.

  5. Remove the MAF sensor from the air cleaner assembly.

Installation Procedure

    Notice: Do not damage the MAF sensor screen. A damaged screen could restrict airflow and lead to a driveability concern.

    Important: The MAF sensor must be mounted with the air flow direction arrow located on top of the MAF sensor pointing with air flow toward the throttle body. Ensure that the MAF sensor locating tabs and the locating slots of the intake air ducts line up before connecting the MAF sensor and the intake air ducts.

  1. Insert the MAF sensor into the air cleaner assembly duct.
  2. 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. Connect the intake air duct to the MAF sensor.
  4. Tighten
    Tighten the 2 band clamps to 3.5 N·m (31 lb in).

  5. Connect the electrical connector to the MAF sensor .