Component Tests and General Diagnostics

DIAGNOSIS AND TESTING - AIR LEAK DETECTION

WARNING:
All pressurized air suspension components contain high pressure air (up to 220 psig). Use extreme caution when inspecting for leaks. Wear safety goggles and adequate protective clothing when inspecting or servicing the air suspension system. A sudden release of air under this amount of pressure can cause possible serious or fatal injury.

WARNING:
Support the vehicle by supplemental means before performing any work on the air suspension system to prevent the vehicle from changing height. Before any given component is to be serviced it must be deflated. Servicing the air suspension system without supplemental support, or with pressure in the specific component, can cause possible serious or fatal injury.

CAUTION:
Never introduce any foreign material into the air suspension system. Only use nitrogen with a Purity Class 5 (99.999% pure). The use of any other material may result in component damage.

Always check for DTCs as the first step of an air leak check. Some DTCs can point to a specific area of the vehicle as a starting point. Use a watered down liquid soap and a spray bottle to perform air leak diagnosis. Apply a liberal spray and inspect for air bubbles in the area of concern.