GM Service Manual Online
For 1990-2009 cars only

Object Number: 2020280  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Remove the instrument panel assembly. Refer to Instrument Panel Assembly Replacement.
  2. Remove the Instrument Panel Tie Bar. Refer to Instrument Panel Tie Bar Replacement.
  3. Remove the Heater and Air Conditioning Evaporator and Blower Module. Refer to Heater and Air Conditioning Evaporator and Blower Module Replacement.
  4. Disconnect the Heater and Air Conditioning Evaporator and Blower module assembly electrical connectors.

1

Heater Core brackets

2

Heater Core

Procedure

Pull out the heater core.

3

Heater and Blower and Air Conditioning Control Module

4

A/C Evaporator Thermal Expansion Valve Fastener (Qty: 2)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
7 N·m (62 lb in)

5

Air Conditioning Evaporator Thermal Expansion Valve

Procedure

Remove and discard sealing washers. Refer to Sealing Washer Replacement.

6

Heater and Air Conditioning Evaporator and Blower Module Case Screw (Qty: 11)

7

Heater and Air Conditioning Evaporator and Blower Module Lower Case

8

Air Conditioning Evaporator Core