GM Service Manual Online
For 1990-2009 cars only

Object Number: 1663975  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement
  2. Remove the blower motor assembly from the HVAC module. Refer to Blower Motor Replacement
  3. Remove the left hand floor air outlet duct. Refer to Floor Air Outlet Duct Replacement - Left Side
  4. Remove the heater core. Refer to Heater Core Replacement
  5. Note: Leave the recirculation actuator attached to the air inlet housing assembly.

  6. Remove the air inlet housing assembly. Refer to Air Inlet Assembly Replacement
  7. Remove the thermal expansion valve from the evaporator core. Refer to Air Conditioning Evaporator Thermal Expansion Valve Replacement

1

Blower Case Clip (Qty: 2)

2

Air Distributor Case Screw (Qty: 6)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
1.0 N·m (9 lb in)

3

Heater and Air Conditioning Case Assembly

4

Air Distributor Case Assembly

5

Air Distributor Case Assembly Screw (Qty: 8)

Tighten
1.0 N·m (9 lb in)

6

Air Distributor Case - Left

7

Air Distributor Case - Right

8

Air Distributor Case - Center

9

Mode Valve Assembly