Valve Block, Compressor Assembly: Removal
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.
Before performing any service on the air suspension system, the system must be disabled to prevent the system from changing ride height. Before any given component is to be serviced it must be deflated. Servicing the air suspension system without the system disabled, or with pressure in any specific component, can cause possible serious or fatal injury.
Fascia removed for clarity.
- Place the ignition in the ON position.
- Place the air suspension system in Park Mode, and return the ignition to OFF.
- With a scan tool, using the routines under the Air Suspension Control Module (ASCM), perform the following:
- Run the Spring Deflate To Atmosphere routine on each of the four springs. When in the Spring Deflate to Atmosphere menu, choose to "completely" deflate for each of the four springs.
- Disable the air suspension system.
- Disconnect and isolate the negative battery cable. Refer to CABLES, BATTERY, REMOVAL .
- Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
- Remove the RF tire and wheel.
- Remove the RF wheel splash shield. Refer to SHIELD, SPLASH, WHEELHOUSE, REMOVAL .
- Disconnect the valve block wiring harness connector (2).NOTE:
Some lines removed for clarity.
NOTE:A small amount of residual air pressure may still be present.
- Remove the five line/fittings (2), and the hose (5) from the face of the valve block.
- Remove the valve block retaining screws (2) and remove the valve block (1).