GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Brakes 🢒 Antilock Brake System 🢒 Front Wheel Speed Sensor Bracket Replacement

Removal Procedure

    Notice: Whenever performing repairs to the wheel speed sensor, wheel speed sensor mounting bracket, steering arm, front caliper anchor plate, steering knuckle, inner bearing dust shield or any attaching fasteners, the wheel speed sensor air gap may be moved out of adjustment. Always check and adjust the wheel speed sensor air gap as outlined in WHEEL SPEED SENSOR REPLACEMENT (C 3500HD), to prevent damage to the wheel speed sensor and to ensure proper operation of the four wheel antilock brake system.

  1. Raise the vehicle.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  3. Remove the brake caliper. Refer to Brake Caliper Replacement .
  4. Remove the hub and rotor. Refer to Front Wheel Hub, Bearing, and Seal Replacement .

    5. Object Number: 405174 Size: SH
  5. Remove the wheel speed sensor to bracket mounting nuts and bolts (6).
  6. Remove the wheel speed sensor (3) from the mounting bracket (4).
  7. Remove the wheel speed sensor to mounting bracket attaching nuts (5).
  8. Remove the wheel speed sensor mounting bracket (4).

Installation Procedure

    Object Number: 405174 Size: SH
  1. Install the wheel speed sensor mounting bracket (4).

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: Do not install the washers between the attaching nuts and the wheel speed sensor mounting bracket, or insufficient thread engagement may occur.

  2. Install the wheel speed sensor mounting bracket attaching nuts (6).

    3. Tighten
    Tighten the attaching nuts to 285 N·m (210 lb ft).

  3. Install and adjust the wheel speed sensor to the mounting bracket. Refer to Wheel Speed Sensor Replacement .

    4. Object Number: 416811 Size: SH
  4. Install the hub (14) and rotor (21). Refer to Hub and Rotor Assembly Replacement .
  5. Install the brake caliper (7). Refer to Brake Caliper Replacement .
  6. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation .