Heater Inlet Hose Fitting Installation

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.

Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480 or equivalent to the heater inlet hose fitting threads.
Install the heater inlet hose fitting.
Tighten

Tighten the heater inlet hose fitting to 45 N.m (33 lb ft).

Fig 1: Installing Heater Inlet Hose Fitting

Courtesy of GENERAL MOTORS CORP.