Compressor Assembly Valve Block - Removal

REMOVAL

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.





1. Place the ignition in the ON position.

2. Place the air suspension system in Park Mode, and return the ignition to OFF.

3. 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.

4. Disconnect and isolate the negative battery cable Battery Cables - Removal.

5. Raise and support the vehicle Service and Repair.





6. Remove Air Compressor stone shield.

7. Disconnect the valve block wiring harness connector (4).





NOTE:
A small amount of residual air pressure may still be present.

8. Remove the five line/fittings (1, 2) from the face of the valve block.

9. Remove the valve block retaining screws and remove the valve block (5).