GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 2WD 🢒 Suspension 🢒 Front Suspension 🢒 Upper Control Arm Replacement

Removal Procedure

    Object Number: 731542 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  3. Remove and discard the upper ball joint to upper control arm bolt and nut.
  4. Separate the upper control arm from the steering knuckle.
  5. Remove the wheel speed sensor wiring harness from the upper control arm. Refer to Wheel Speed Sensor Replacement.
  6. If servicing the left upper control arm, remove the battery tray. Refer to Battery Tray Replacement.

    7. Object Number: 1412477 Size: SH
  7. Gently pry out on inner fender body panel to access forward facing bolt.

    8. Object Number: 731548 Size: SH
  8. Remove the upper control arm mounting bolts.
  9. Remove the upper control arm.

Installation Procedure

    Object Number: 731548 Size: SH
  1. Install the upper control arm.

    2. Object Number: 1412477 Size: SH
  2. Gently pry out on inner fender to access the forward facing bolt.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the upper control arm mounting bolts and tighten to 146 N·m (108 lb ft).
  4. Install the battery tray, if removed. Refer to Battery Tray Replacement.

    5. Object Number: 731546 Size: SH
  5. Install the ABS wheel speed sensor wiring harness to the upper control arm. Refer to Wheel Speed Sensor Replacement
  6. Connect the upper control arm to the steering knuckle.
  7. Install a new upper ball joint to upper control arm bolt and nut and tighten the bolt to 41 N·m (30 lb ft).
  8. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  9. Lower the vehicle.
  10. Check the front wheel alignment. Refer to Wheel Alignment Specifications.