GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Safari - 2WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Inlet Assembly Replacement

Removal Procedure

    Caution: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

  1. Disable the supplemental inflatable restraint (SIR) system. Refer to Disabling the SIR System in Restraints.
  2. Remove the passenger's knee bolster. Refer to Passenger Knee Bolster Replacement in Instrument Panel and Gauges.
  3. Remove the right side cowl trim panel. Refer to Trim Panel Replacement - Cowl Side in Interior Trim.
  4. Remove the air distributor. Refer to Air Distributor Duct Replacement .

    5. Object Number: 555510 Size: SH
  5. Remove the vacuum (3) connector.

    6. Object Number: 280260 Size: SH
  6. Remove the bolts that retain the air inlet assembly.
  7. Remove the air inlet assembly from the vehicle.
  8. Remove the nuts that retain the vacuum actuator.
  9. Remove the vacuum actuator from the air inlet assembly.

Installation Procedure
  1. Install the vacuum actuator to the air inlet assembly.

    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 the nuts that retain the vacuum actuator to the air inlet assembly.

    3. Tighten
    Tighten the retaining nuts to 2 N·m (18 lb in).

  3. Install the air inlet assembly to the vehicle.

    4. Object Number: 280260 Size: SH
  4. Install the bolts that retain the air inlet assembly to the vehicle.

    5. Tighten
    Tighten the four bolts that retain the air inlet to 4 N·m (35 lb in).


    Object Number: 555510 Size: SH
  5. Install the vacuum (3) connector.
  6. Install the air distributor assembly. Refer to Air Distributor Duct Replacement .
  7. Install the right side cowl trim panel. Refer to Trim Panel Replacement - Cowl Side in Interior Trim.
  8. Install the Passenger's knee bolster. Refer to Passenger Knee Bolster Replacement in Instrument Panel and Gauges.
  9. Enable the SIR system. Refer to Enabling the SIR System in Restraints.