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Air Spring

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:

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.

CAUTION:

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.

NOTE:

The air suspension system can be disabled and enabled by using the Display Screen Module (DSM) in the vehicle under Tire Jack Mode, which is the preferred method. If the disable level control routine in the diagnostic scan tool is used, it will only disable the level control (automatic and manual) for that ignition cycle. The air suspension system can also be enabled by driving the vehicle above 19 km/h (12 mph). The air suspension must be disabled prior to lifting the vehicle or performing any work.

  1. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  2. With a diagnostic scan tool, using the routines under the Air Suspension Control Module (ASCM), perform the following:
    • Disable Level Control
    • Spring Deflate To Reservoir
  3. Remove the tire and wheel assembly. Refer to REMOVAL AND INSTALLATION .
    GC0201784Courtesy of CHRYSLER GROUP, LLC
    1 - Electric Parking Brake (EPB) Actuator Harness Bracket Bolt
  4. Remove the Electric Parking Brake (EPB) actuator harness bracket bolt.
  5. Remove the rear brake caliper from the brake caliper adapter. Refer to CALIPER, DISC BRAKE, REAR, REMOVAL AND INSTALLATION .
    GC0200859Courtesy of CHRYSLER GROUP, LLC
    1 - Wire Harness Routing Clip
    2 - Wire Harness Routing Clip
  6. Disengage the EPB actuator wire harness routing clips.
    GC0201064Courtesy of CHRYSLER GROUP, LLC
    1 - Air Spring Line Nut
  7. Move the boot slightly and disconnect the air spring line nut.
    GC0200940Courtesy of CHRYSLER GROUP, LLC
    1 - Spring Link Outer Bolt and Nut
  8. Support the spring link with a suitable jack.
  9. Remove the spring link outer bolt and nut.
  10. Remove the spring.

INSTALLATION 

Follow the removal procedure in reverse for general reassembly of the components on the vehicle. The steps listed below are calling out specific procedures that should be followed during installation.

During installation torque the following fasteners to specification:

Rear Air Spring Line Nut 6 N. m (53 In. Lbs.)  -
Spring Link Outer Bolt 185 N. m (136 Ft. Lbs.)  Fastener must be torqued with the vehicle at normal ride height.
NOTE:

In any instance where a bolt is through a rubber bushing, the bolt must be torqued with the vehicle at normal ride height.

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