Compressor Sealing Washers Replacement

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.

IMPORTANT: If you use the correct washers, there should be a space of 1.2 mm (0.047 in) between the suction/discharge hose block and the compressor rear head.

Clean all of the sealing surfaces with a lint-free cloth in order to prevent dirt or foreign material from getting into the following sealing surface components:
- The washers
- The hose block
- The compressor ports

Fig 1: Pilot Sealing Washer

Courtesy of GENERAL MOTORS CORP.

Install the sealing washer onto the pilots of the suction/discharge fitting.
Ensure that the washers are seated against the surface of the block fitting.

Fig 2: Hose Block - Compressor

Courtesy of GENERAL MOTORS CORP.

Install the hose block to the compressor.
Ensure that the sealing washers are seated within the compressor's machined surfaces.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Hold the block in place and tighten the attachment bolt.
Tighten: Tighten the bolt to 33 N.m (24 lb ft).