GM Service Manual Online
For 1990-2009 cars only

Object Number: 1848584  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the HVAC module - auxiliary. Refer to Auxiliary HVAC Module Replacement.
  2. Disconnect any wiring connectors or harnesses form HVAC module.
  3. Remove evaporator tube retaining clips before removing lower gasket and cover.

1

HVAC Module Gasket

2

Auxiliary HVAC Module Lower Cover Bolt (Qty: 3)

Caution: Refer to Fastener Caution in the Preface section.

Procedure

Remove any fastener clips that secure cover to module.

Tighten
3 N·m (27 lb in)

3

Auxiliary HVAC Module Lower Cover

4

HVAC Module Case Screw (Qty: 10).

Procedure

Remove any fastener clips that secure cover to module.

Tighten
3 N·m (27 lb in)

5

Auxiliary HVAC Heater Core

Tip
Ensure all seals and gaskets are in place upon installation.