GM Service Manual Online
For 1990-2009 cars only

Object Number: 1816517  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the thermal expansion valve. Refer to Auxiliary Air Conditioning Evaporator Thermal Expansion Valve Replacement.
  2. Remove the auxiliary HVAC module. Refer to Auxiliary HVAC Module Replacement.
  3. Disconnect the electrical connectors.

1

HVAC Lower Case Screw (Qty: 6)

Caution: Refer to Fastener Caution in the Preface section.

Tip

    • The HVAC lower and side cases must be separated for the evaporator core removal.
    • Ensure the lower case gasket is in good condition upon installation.

Tighten
1.5 N·m (13 lb in)

2

HVAC Side Case Screw

Tighten
1.5 N·m (13 lb in)

3

Evaporator Assembly

Tip

    • Ensure the evaporator gasket is in good condition upon installation.
    • Ensure the temperature and mix doors are in the proper position upon assembly of the side cases.