LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Suspension System >> Repair Instructions >> Lower Control Arm Replacement (GNA) >> Installation Procedure

Installation Procedure

    Fig 1: Front Lower Control Arm
    GM2911731Courtesy of GENERAL MOTORS COMPANY
  1. Support the lower control arm (3) with a jackstand or other suitable tool and position the control arm on the vehicle.
  2. Start the NEW front lower control arm rear bolts (2) and OLD nuts (1) by hand. Do not tighten.
  3. Fig 2: Front Lower Control Arm
    GM2911730Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

  4. Install the OLD front lower control arm front nut (1) and NEW bolt (2) and tighten the bolt to 100 N.m (74 lb ft) +90 degrees.
  5. Fig 3: Front Lower Control Arm
    GM2911731Courtesy of GENERAL MOTORS COMPANY
  6. Tighten the NEW front lower control arm rear bolts (2) to 100 N.m (74 lb ft) +90 degrees.
  7. Connect the lower control arm ball joint to the steering knuckle.
  8. Fig 4: Steering Knuckle
    GM2911728Courtesy of GENERAL MOTORS COMPANY
  9. Install the NEW steering knuckle bolt (2) and OLD steering knuckle nut (1).
  10. Tighten the OLD steering knuckle nut (1) to 50 N.m (37 lb ft).
  11. After the initial tightening, loosen the steering knuckle nut (1) 120 degrees.
  12. After loosening the steering knuckle nut (1), tighten the nut to 50 N.m (37 lb ft) +45 degrees.
  13. Connect any harnesses or retainers previously disconnected from the lower control arm.
  14. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  15. After repairs, verify the front wheel alignment and adjust if necessary. Refer to Wheel Alignment Measurement .