Front Suspension & Wheel Alignment: Overview Dodge Challenger III рестайлинг

DESCRIPTION

The upper ball joint is pressed into the upper control arm. The ball joint is a "sealed for life" component and cannot be maintenance lubricated. This ball joint is lubricated for life at the time of assembly. No attempt should be made to ever add any lubrication to this ball joint.

Neither the upper ball joint, nor the seal boot can be serviced as a separate component. The entire upper control arm must be replaced if either are damaged.

The ball joint connection at the knuckle is achieved by an interference fit created by the tapered stud of the ball joint and a tapered hole in the steering knuckle. The ball joint stud is retained in the steering knuckle using a locking nut.

The front wheel bearing and wheel hub of this vehicle are a one-piece sealed unit or hub and bearing unit type assembly.

Scheme 13

On Rear-Wheel Drive SRT8 vehicles, the hub and bearing (1) is mounted to the center of the spindle using a retaining nut.

All front hub and bearings have five wheel mounting studs (3) on the hub flange for mounting the wheel to the vehicle. The wheel mounting studs are the only replaceable components of the hub and bearing. Otherwise, the hub and bearing is serviced only as a complete assembly.

A magnetic encoder (2) for the wheel speed sensor is pressed onto the hub and bearing.

OPERATION

The Active Damping Control Module (ADCM) uses the CAN bus to communicate with multiple modules. The ADCM has the following inputs: Vehicle Speed, Steering Angle Sensor (SAS) position, Throttle Position Sensor (TPS), Active Damping System (ADS) Switch, and three active damping sensors.

There are two operating modes of the ADS, Auto and Sport. At each ignition key on cycle, the vehicle defaults to Auto mode. When Sport mode is selected, the suspension has unique handling characteristics.

The Active Damping Control Module (ADCM) controls the suspension and ride for the SRT version of this vehicle by adjusting the rebound and jounce of the shock assemblies using the above information and predetermined settings for maximum vehicle control. The shock absorbers are unique to the ADS. Each shock absorber has a valving unit that is external, but still part of the shock absorber. Inside each valving unit are two solenoids that control the damping valves to alter the ride of the vehicle. The shocks are replaced as an assembly, they cannot be disassembled for repair.

Additionally, there are three active damping sensors, two in the front of the vehicle and one in the rear. These sensors measure the plane of the vehicle.

Note. Right side shown in illustration, left side similar.

1. Raise and support the vehicle.
2. Release the terminal locking tab and disconnect the wiring harness connector (1).
3. Remove the sensor retaining bolt (3) and remove the sensor (2) from the vehicle.

Scheme 14

1. Raise and support the vehicle.
2. Release the terminal locking tab and disconnect the wiring harness connector (3) from the rear Active Damping Suspension (ADS) sensor (4).
3. Remove the two mounting nuts (1) securing the ADS bracket (2) to the shock tower.
4. Remove the bracket (2) from the vehicle with the ADS sensor attached.

Note. Right side shown in illustration, left side similar.

1. Position the sensor (2), install the sensor retaining bolt (3) and tighten to 9 N.m (80 in. lbs.).
2. Connect the wiring harness connector (1) and seat the terminal locking tab.