Installation Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Install the temperature door.
Install the new case seal to the HVAC module case.
Wet the upper evaporator core seal with water.

Fig 1: Installing New Case Seal To HVAC Module Case
Courtesy of GENERAL MOTORS CORP.

Important: Inspect the condition of the retaining tab on the upper module case prior to installing the lower module case. If the retaining tab is broken or damaged, install an external retaining clip (P/N 52458793, or equivalent).
Align and install the upper module case to the lower module case.
Align and secure the retaining tab (1).

Fig 2: Installing Upper Module Case To Lower Module Case
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE .
Install the HVAC module upper mounting screws.
Tighten

Tighten the screws to 1.6 N.m (14 lb in).
Install the air inlet housing.
Install the air inlet housing retaining screws.
Tighten

Tighten the screws to 1.6 N.m (14 lb in).
Install the temperature actuator.
Install the temperature actuator screws.
Tighten

Tighten the screws to 1.5 N.m (13 lb in).
Install the HVAC module. Refer to HVAC MODULE ASSEMBLY REPLACEMENT .