(1)Remove dryer-to-compressor retaining screw (Fig. 13).

(2)Rotate dryer assembly 90° to release retaining tangs from exhaust solenoid housing and withdraw unit.

INSTALLATION

Inspect O-Ring for damage and location on dryer assembly.

(1)Insert and index air dryer locking tangs into exhaust solenoid outlet.

(2)Rotate air dryer assembly to lock position and install air dryer-to-compressor retaining screw (Fig. 13).

Fig. 13 Air Dryer Remove/Install

SOLENOIDS (STRUTS AND AIR SPRINGS)

Front struts and rear springs are equipped with solenoids that control air pressure and volume within the assemblies. The solenoids are electrically operated to allow air input, contain air, or release of air pressure, dependent on control module commands.

REMOVAL

WARNING: DO NOT ATTEMPT TO REMOVE OR INSTALL SOLENOIDS WHILE AIR SUSPENSION (FRONT STRUTS AND REAR AIR SPRINGS) ARE SUPPORTING VEHICLE.

Disconnect negative battery cable. Raise vehicle and remove wheel and tire assembly then remove solenoid(s) as follows:

(1)Separate electrical connection to solenoid.

(2)Disconnect air line, see Air Lines and Fittings. Solenoids have molded square tangs to fit into stepped notches of the air spring housing. The notches provide an air relief position and a retaining position. The retaining position is locked with a retaining clip.

(3)Remove retaining clip (Fig. 14).

Fig. 14 Remove Retaining Clips

(4) Rotate solenoid to first step in housing and allow air pressure to vent (Fig. 15).

Fig. 15 Release Air Pressure

(5) Rotate solenoid to release slot and remove (Fig.

16).

Fig. 16 Remove Solenoid (Inspect O Ring)