GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Tracker - 2WD 🢒 Engine 🢒 Engine Controls - 2.0L 🢒 Mass Airflow Sensor Replacement

Removal Procedure

    Object Number: 451681 Size: SH
  1. Remove intake manifold air inlet duct (2).
  2. Disconnect the MAF sensor electrical connector (3).
  3. Remove the 2 MAF sensor bracket attaching bolts (5).
  4. Remove the MAF sensor (1) from the air filter housing (4).

Installation Procedure

    Object Number: 451681 Size: SH
  1. Install the MAF sensor (1) into the air filter housing (4).

    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.

  2. Secure the MAF sensor with the 2 bolts (5).

    3. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  3. Connect the MAF sensor electrical connector (3).
  4. Install intake manifold air inlet duct (2).