OEM GMC Envoy Wheel Hub

GMC Envoy Wheel Hub Parts Questions & Experts Answers

• Hub & Bearing, Front
  19259798
  Q: How to replace the wheel hub and speed sensor on GMC Envoy?

  A: When replacing the Wheel Hub and speed sensor start by lifting the car and disconnect the wheel drive shaft nut if it exists. Before handling the Wheel Hub and speed sensor, you must disconnect both front brake caliper parts from the upper Control Arm and both connections of the abs sensors wiring harness. Next separate the front retaining bolt from the speed sensor bracket. To install the speed sensor bracket correctly note the connector positions on the current part before you remove it. Nest the speed sensor body connector and paint the speed sensor's wiring harness attachment point to the Steering Knuckle with white paint. Remove the wheel bearing/hub and brake rotor mounting bolts before taking out the wheel bearing/hub assembly from the knuckle with the brake rotor placed on a flat surface. Wipe clean the surface where the wheel bearing/hub connects with the brake rotor. The single mounting bolt securing these parts needs to be removed for cleaning. When needed, install a new Wheel Speed Sensor on the hub before placing the bearing hub against the rotor and securing it with 20 nm (15 lb ft) torque using a crisscross pattern. Place the backing plate over the wheel bearing hub and brake assembly as you position the wheel bearing hub into the Steering Knuckle while maintaining alignment of the Wheel Speed Sensor wiring harness with its reference point on the Steering Knuckle. Secure the wheel bearing/hub with its brake rotor by tightening the mounting bolts to 125 nm (92 lb ft), then connect the brake caliper mounting bracket. Apply force on a screwdriver across the cooling fins of the brake rotor while pushing the brake rotor securing bracket with a pry bar to tighten all the mounting bolts for 110 nm (81 lb ft) torque in serial order. Put on the wheel drive shaft nut then fasten it to 260 nm (191 lb ft). Attach the speed sensor wiring harness bracket and front bolt before locking it to 20 nm force. Hook the wiring harness retainers onto the upper Control Arm. Link the Wheel Speed Sensor electrical connector to the body and reposition your car.