GM Service Manual Online
For 1990-2009 cars only

Object Number: 1966530  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the auxiliary HVAC heater core. Refer to Auxiliary Heater Core Replacement.
  2. Disconnect any wiring connectors.
  3. Invert the auxiliary HVAC module to access components.

1

Auxiliary A/C Evaporator and Blower Lower Case - Outboard Screw (Qty: 12)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
2 N·m (18 lb in)

2

Auxiliary A/C Evaporator and Blower Lower Case - Outboard

Procedure

  1. Note the location and routing of the wiring harness to ensure proper reinstallation.
  2. When replacing the HVAC case, transfer all necessary components.