Removal and Installation

Special Tool(s)

Removal

WARNING: Do not remove an air spring under any circumstances when there is pressure in the air spring. Do not remove any components supporting an air spring without either exhausting the air or providing support for the air spring to prevent vehicle damage or personal injury.

WARNING: Do not attempt to install any rear air spring that has become unfolded to prevent vehicle damage or personal injury.

CAUTION: Failure to observe the following instructions can result in a sudden failure of the air spring or suspension system.
^ Any rear spring which is unfolded must be refolded prior to being installed in a vehicle.
^ The air spring refolding procedure should only be used for an air spring, which has never supported the vehicle's weight while in the incorrectly folded position.
^ Improperly folded air springs found on vehicles during pre-delivery inspection or after use must be installed new.
^ Do not attempt to inflate any air spring, which has been collapsed while uninflated from the rebound hanging position to the jounce stop.
^ When installing a new air spring, care must be taken not to apply a load to the suspension until springs have been inflated using the air spring fill procedure.
^ After inflating an air spring in the hanging position, it must be inspected for correct shape.

1. NOTE: The vehicle must be positioned on a suitable lifting device prior to deflating the air suspension system

Raise and support the vehicle until the wheel and tire assemblies are slightly above the ground.
2. Using the scan tool, vent the air springs
3. Raise the vehicle





4. Remove the rear air spring retainer





5. Detach the air spring from the rear axle





6. Remove the air spring
1 Disconnect the electrical connector
2 Compress the quick connect locking ring and pull out the air line
3 Remove the air spring

Installation





1. Install the air spring.
1 Position the air spring assembly in the frame seat.
2 Install the spring retainer clip.





2. Seat the bottom of the air spring on the rear axle.





3. NOTE: When installing the air lines, make sure the white air line is fully inserted into the fitting for correct installation.

Connect the air spring solenoid valve.
1 Connect the electrical connector.
2 Connect the air line.
3 Make sure air spring is in the correct shape.

4. CAUTION: To avoid damage to the air spring, do not allow suspension to compress before the spring is inflated.

Lower the vehicle until the wheel and tire assemblies are slightly above the ground.
5. Using the scan tool, inflate the air springs.
6. Lower the vehicle.