Installation Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: HVAC Pass Thru Seal

Courtesy of GENERAL MOTORS CORP.

Install the evaporator drain hose-auxiliary (2) to the HVAC module-auxiliary (1).
Install the HVAC module pass through seal (3) to the HVAC module-auxiliary (1).
Install the HVAC module-auxiliary. Refer to HVAC Module Replacement - Auxiliary .