Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Important: Take the following measures when installing sealing washers:

Keep dirt and foreign material from the sealing surfaces of the washers, the hose block, and the compressor ports.
Clean all of the sealing surfaces with a lint-free rag.
Do not reuse sealing washers.
The sealing washers do not need oiling prior to assembly.

Fig 1: Sealing Washers
Courtesy of GENERAL MOTORS CORP.

Install the sealing washer onto the pilots of the suction/discharge block fitting. The washers must bottom against the surface of the block fitting.
Install the hose block to the compressor. Ensure that the sealing washers are seated within the compressor machined surfaces.
Hold the block in place. Tighten the bolt to 34 N.m (25 lb in).