Installation Procedure
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Refer to Fastener Notice
in Cautions and Notices.
IMPORTANT:
Check the air supply lines for deep scores or cuts. If the air supply lines are damage the lines must be replaced.
- 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).
- Connect the air inflator switch electrical connection, air supply line, and air spring compressor vent hose to the air spring compressor.
NOTE: Refer to Fastener Notice in Cautions and Notices.
- Install the air spring compressor to the frame mounting bolts.
Tighten
Tighten the air spring compressor to the frame mounting bolts to 25 N.m (18 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.
- Check D height. Refer to Trim Height Inspection Procedure in Suspension General Diagnosis.
- Check 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 .