GM Service Manual Online
For 1990-2009 cars only

Object Number: 1814007  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the left rear upper garnish molding. Refer to Lock Pillar Upper Garnish Molding Replacement .
  4. Remove the air ducts from the HVAC module. Refer to Auxiliary Air Distributor Lower Duct Replacement and Auxiliary Air Distributor Duct Replacement - Upper .
  5. Disconnect the wiring connections.
  6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  8. Remove the left inner wheelhouse liner. Refer to Rear Wheelhouse Panel Liner Replacement .
  9. Remove the rubber exhaust hangers to gain access to the A/C and the 3 heater pipes.
  10. Disconnect the A/C and the heater pipes from the underside of the HVAC module.
  11. Lower the vehicle.

1

Auxiliary HVAC Module Bolt (Qty: 3)

Notice: Refer to Fastener Notice in the Preface section.

Tighten
9 N·m (80 lb in)

2

Auxiliary HVAC Module

Tip

    •  Remove and discard the sealing washer. Refer to Sealing Washer Replacement .
    • Ensure the module seal is in good condition upon installation.