GM Service Manual Online
For 1990-2009 cars only

Object Number: 1620268  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the HVAC module. Refer to HVAC Module Assembly Replacement.
  2. Remove the HVAC module wiring harness from the HVAC module.

1

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

Caution: Refer to Fastener Caution in the Preface section.

Tighten
7 N·m (62 lb in)

2

A/C Evaporator Thermal Expansion Valve Assembly

3

Sealing Washer

Procedure

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

4

Cover Assembly - Heater Screw (Qty: 12)

Procedure

  1. Remove the heater core cover heat stakes using a small chisel.
  2. Install new screws in the heater core cover.
  3. Screw holes are adjacent to the heat stakes.

Tighten
1.5 N·m (13 lb in)

5

Heater Cover Assembly

6

Heater Core Assembly

7

Case Assembly Screw - A/C Evaporator and Blower Lower (Qty: 9)

Tighten
1.5 N·m (13 lb in)

8

A/C Evaporator and Blower Case - Lower

9

A/C Evaporator Assembly