Air Springs
Place the vehicle in "Tire Jack Mode" before proceeding with any service procedure.
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.
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.
When removing an air line from a component and the air line is to be reused, do not remove the 90° fitting or the brass fitting from the air line. If either is removed, the air line must be replaced. New components have air line fittings attached; however if the original air line is used the original fitting must also be used. Do not remove protective caps or plugs from air lines or components until ready to install the air line to prevent moisture or dirt intrusion. All air line fittings must be hand started to avoid cross threading.
- With a scan tool, using the routines under the ASCM, perform the following:
- Disable the air suspension system.
- Run the Spring Deflate To Reservoir routine on the air suspension spring to be removed.
- Disconnect the negative battery cable.
- Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
- Cut the air line (1) as close to the Voss fitting as possible using an appropriate plastic tubbing cutter.
- Remove the lower nuts (1) retaining the air spring to the spring seat.
- To remove the air spring, disengage the clips (1) on the top of the air spring and push down on the air spring to compress it, tilt the top out and lift the air spring from the spring seat.