GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Engine 🢒 Engine Controls - 7.4L 🢒 Air Cleaner Assembly Replacement

Removal Procedure

    Object Number: 18389 Size: SH
  1. Remove the duct assembly.

    2. Object Number: 18390 Size: SH
  2. Remove the bolt.

    3. Object Number: 18391 Size: SH
  3. Remove the air intake duct.

    4. To release air intake duct from the front fender, depress the 2 ears inward.

  4. Remove the air cleaner assembly with the bracket.

    5. Pivot the air cleaner in an upward direction to release the top barb on the intake duct.

Installation Procedure

    Object Number: 18391 Size: SH
  1. Install the air cleaner assembly with the bracket.
  2. Install the air intake duct.

    3. Object Number: 18390 Size: SH

    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. Install the bolt.

    4. Tighten
    Tighten the bolt to 18 N·m (13 lb ft).


    Object Number: 18389 Size: SH
  4. Install the duct assembly.