GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 Jimmy - 2WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Inlet Assembly Replacement

Removal Procedure
  1. Remove the instrument panel. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gauges and Console.

    2. Object Number: 501944 Size: SH
  2. Disconnect the vacuum connector.
  3. Remove the body harness connector (C203) support bracket mounting nuts.
  4. Remove the bracket from the lower 2 air inlet assembly mounting studs.

    5. Object Number: 281490 Size: SH
  5. Remove the air inlet assembly mounting studs (3).
  6. Remove the air inlet assembly (2).
  7. Remove the air inlet assembly gasket (1), if necessary.

Installation Procedure

    Object Number: 281490 Size: SH
  1. Install the air inlet assembly gasket (1), if necessary.
  2. Install the air inlet assembly (2).

    3. 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 air inlet assembly mounting studs (3).

    4. Tighten
    Tighten the bolts to 4.5 N·m (40 lb in).


    Object Number: 501944 Size: SH
  4. Install the body harness connector (C203) support bracket to the lower 2 air inlet assembly mounting studs.
  5. Install the bracket mounting nuts.

    6. Tighten
    Tighten the nuts to 9.0 N·m (80 lb in).

  6. Install the vacuum connectors.
  7. Install the instrument panel. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gauges and Console.