Installation Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Install the air compressor (2) to the vehicle.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Slide the air compressor forward to secure the fasteners into the frame slots and tighten the mounting nuts.
Tighten

Tighten the nuts to 15 N.m (11 lb ft).
Install the air inlet hose (1) to the fuel filler neck bracket.

Fig 1: Installing Procedure Of Air Compressor (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Connect the air tube (1) to the air dryer.
Connect the electrical connection (2).
Important: Before driving the vehicle, turn the ignition on and wait approximately 45 seconds. This will ensure that the air adjustable shock absorbers are filled with residual pressure.
Lower the vehicle.

Fig 2: Installing Procedure Of Air Compressor (2 Of 2)
Courtesy of GENERAL MOTORS CORP.