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)

Caution: Refer to Fastener Caution 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.