GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Lucerne 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Air Temperature Door Replacement

Air Temperature Door Replacement CJ2


Object Number: 1663979 Size: MF

Callout

Component Name

Notice: Refer to Fastener Notice in the Preface section.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications

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. Important: Leave the recirculation actuator attached to the air inlet housing assembly.

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

1

Blower Case Clip (Qty: 2)

2

Air Distributor Case Screw (Qty: 6)

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

Air Temperature Valve

Air Temperature Door Replacement C67


Object Number: 1690451 Size: MF

Callout

Component Name

Notice: Refer to Fastener Notice in the Preface section.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications

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. Important: Leave the recirculation actuator attached to the air inlet housing assembly.

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

1

Blower Case Clip (Qty: 2)

2

Air Distributor Case Screw (Qty: 6)

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 Clip

6

Air Distributor Case Assembly Screw (Qty: 11)

Tighten
1.0 N·m (9 lb in)

7

Air Distributor Case - Left

8

Air Distributor Case - Right

9

Air Temperature Valve