Control Arm: Service and Repair
Lower Control Arm
Removing
- Raise and support vehicle.
- Remove wheel mounting nuts (3), then tire and wheel assembly (1).
- Remove steering knuckle. Refer to => [ Steering Knuckle ] Steering Knuckle.
• If left side lower control arm is being serviced, perform the following:
- Remove front and rear engine mount thru-bolts (4 - front shown - rear similar).
- Rotate the lower portion of the engine and transmission forward.
- With the engine and transmission in this position, perform the next step.
- Remove front bolt (1) attaching lower control arm (2) to crossmember (4).
- Remove rear bolt (3) and nut attaching lower control arm (2) to crossmember (4).
- Remove lower control arm (2).
Installing
- Position lower control arm (2) into brackets on suspension crossmember (4).
- Install front mounting bolt (1) and rear mounting bolt (2) and nut attaching lower control arm to crossmember.
• Do not tighten front bolt (1) at this time.
- Tighten rear mounting bolt nut to 155 Nm (114 ft lbs).
- If left side lower control arm is being serviced, reinstall front and rear engine mount thru-bolts (4 - front shown - rear similar).
- Install steering knuckle, brake rotor and caliper. Refer to => [ Steering Knuckle ] Steering Knuckle.
- Install tire and wheel assembly (1). Install and tighten wheel mounting nuts (3) to 135 Nm (100 ft lbs).
- Lower vehicle.
- Position vehicle on alignment rack/drive-on hoist. Raise hoist as necessary to access mounting bolts.
- At curb height, tighten front lower control arm mounting bolt (1) to 155 Nm (114 ft lbs).
- Perform wheel alignment.