Installation Procedure

WARNING: This page is about a different car, the 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Air Spring Compressor Components

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

IMPORTANT:

Inspect the air supply lines for deep scores or cuts. If the air supply lines are damaged, the lines must be replaced.
Ensure the color on the air supply lines match the color on the air spring compressor for reassembly.

If no damage to the air supply pipes is evident, then remove the fittings from the new compressor and use existing fittings that are already attached to air supply lines. Install the air supply lines with existing fittings to the air spring compressor.
Tighten: Tighten the air supply line fittings to 2.25 N.m (20 lb in).
If damage is evident to the air supply lines, then replace the air supply lines. Refer to Air Suspension Air Line Replacement .
Connect the air spring compressor electrical connection (2).

Fig 2: Locating Air Spring Compressor

Courtesy of GENERAL MOTORS CORP.

Connect the air inflator switch electrical connection, air supply line, and air spring compressor vent hose to the air spring compressor.

Fig 3: Identifying Air Compressor & Mounting Bolts

Courtesy of GENERAL MOTORS CORP.

Install the air spring compressor to the frame mounting bolts.
Tighten: Tighten the bolts to 20 N.m (15 lb ft).
Lower the vehicle.
Install the air suspension system fuse.
Start the vehicle and run for approximately 1 minute to ensure that the air spring leveling system is functioning properly.
Inspect D-height. Refer to Trim Height Inspection .
Inspect for leaks. If a leak is found at the air supply lines connections at the air spring compressor, replace the air supply lines. Refer to Air Suspension Air Line Replacement .