Front Wheel Speed Sensor: Removal
WARNING:
Dust and dirt accumulating on brake parts during normal use may contain asbestos fibers from production or aftermarket linings. Breathing excessive concentrations of asbestos fibers can cause serious bodily harm. Exercise care when servicing brake parts. DO NOT clean brake parts with compressed air or by dry bushing. Use a vacuum cleaner specifically designed for the removal of asbestos from brake components. If a suitable vacuum cleaner is not available, cleaning should be done with a water dampened cloth. DO NOT sand, or grind brake lining unless equipment used is designed to contain dust residue. Dispose of all residue containing asbestos fibers in sealed bags or containers to minimize exposure to yourself and others. Follow practices prescribed by the occupational safety and health administration and the environmental protection agency for the handling, processing, and disposition of dust or debris that may contain asbestos fibers.
CAUTION:
Many components of the ABS System are not serviceable and must be replaced as an assembly. Do not disassemble any component which is not designed to be serviced.
CAUTION:
Only the recommended jacking or hoisting positions for this vehicle are to be used whenever it is necessary to lift a vehicle. Failure to raise a vehicle from the recommended locations could result in lifting a vehicle by the hydraulic control unit mounting bracket. Lifting a vehicle by the hydraulic control unit mounting bracket will result in damage to the mounting bracket and the hydraulic control unit.
CAUTION:
Brake fluid will damage painted surfaces. If brake fluid is spilled on any painted surface, wash off with water immediately.
- Raise the vehicle.
- Disconnect the wheel speed sensor cable connector from the wiring harness on the inside of the frame rail above the front suspension crossmember (Fig 1 ). The connector has a locking tab which that must be pulled back before the connector release tang can be depressed, releasing the connection.
- If the sensor being removed is a left front, unclip the speed sensor cable from the brake tube on the inside of and under the frame rail ( Fig 2 ).
- Remove the speed sensor cable grommet from the retaining bracket attached to the brake hose on the outside of the frame rail.
- Remove the bolt mounting the wheel speed sensor head to the steering knuckle ( Fig 3
).CAUTION: When removing a wheel speed sensor from the knuckle, do not use pliers on the sensor head. This may damage the sensor head. If the sensor has seized, use a hammer and a punch to tap the edge of the sensor head ear, rocking the sensor side-to-side until free.
- Carefully, remove the sensor head and heat shield from the steering knuckle.
- Remove the screw securing the wheel speed sensor to the rear of the strut (Fig 4 ). Remove the wheel speed sensor.