GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Bravada 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Air Cleaner Outlet Duct Replacement

Removal Procedure

    Object Number: 444792 Size: SH
  1. Disconnect the breather tube from the air cleaner outlet duct.

    2. Object Number: 10940 Size: SH
  2. Disconnect the IAT sensor harness connector.

    3. Object Number: 312278 Size: SH
  3. Remove the air cleaner outlet duct retaining wingnut.

    4. Object Number: 424556 Size: SH
  4. Separate the air cleaner outlet duct from the air cleaner by loosening the hose clamp after the MAF sensor.
  5. Remove air cleaner outlet duct.

Installation Procedure

    Notice: 

       • Handle the MAF sensor carefully.
       • Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
       • Do not damage the screen located on the air inlet end of the MAF.
       • Do not touch the sensing elements.
       • Do not allow solvents and lubricants to come in contact with the sensing elements.
       • Use a small amount of a soap based solution in order to aid in the installation.


    Object Number: 424556 Size: SH
  1. Install air cleaner outlet duct to throttle body.

    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. Install air cleaner outlet duct to MAF sensor.

    3. Tighten
    Tighten the hose clamp to 4 N·m (32 lb in).


    Object Number: 10940 Size: SH
  3. Connect the IAT sensor harness connector.

    4. Object Number: 312278 Size: SH
  4. Install the air cleaner outlet duct retaining wingnut.

    5. Tighten
    Tighten the wingnut to 2 N·m (18 lb in).


    Object Number: 444792 Size: SH
  5. Connect the breather tube to the air cleaner outlet duct.