Cadillac 15939599 Front Lower Control Arm Assembly

jackstands to support the car, both wheels braced tight. Raise the car's rear end, placing jackstands under the frame for safe support, lifting only the rear. Once stable, remove the wheel and all components before you begin. Separate the wheel, exhaust system, coil springs, brake calipers (keeping them secure with wire), brake discs, and remove the electrical connections from the wheel sensors. Carefully disconnect all wiring and tubing connected to the suspension support, then separate the Electronic Level Control link from the control arm. In case you need, take off the hub and bearing package, the toe link from the suspension arm, and the stabilizer bar link from the suspension arm. Support the underside of the suspension with heavy jacks, remove the front bolts, and the two back bolts, slowly lower the jacks to get the support unit out from under the car. Disconnect the control arm from its mount point by unbolting the attachment that connects it to the suspension support. To install the new suspension support, do the opposite of what you did when taking it off, and make sure to properly tighten all bolts to their specified torque values. Before tightening the control arm pivot bolts, lift the lower control arm end with a floor jack. After that, tighten the brake caliper bolts by hand. Leave the ignition in the On position for 45 seconds to allow the Electronic Level Control system to pressurize, then finish up.

Take off the wheel lug nuts, raise your car by its front end, and firmly support it using jackstands. Set the parking brake, and block the rear wheels so the car won't move. First, take off the wheel. Then unlatch the steering knuckle balljoint stud nut. To separate the balljoint from the knuckle, use a special tool called a balljoint separator between the control arm and steering knuckle. If not available, hitting the steering knuckle boss with a hammer will do the job, but beware it can damage the balljoint boot. Pull the road sensing suspension position sensor off when available from the control arm. Take all fasteners off that connect the control arm to the frame, then detach the control arm. Check the control arm bushings for hardness changes, wearing out, and cracks. Go to a dealer service department or suspension repair shop if the bushings are broken down. Set the control arm in the suspension support and put the fasteners in place without making them tight yet. Push the balljoint tip into the steering knuckle hole, add the nut, tighten it according to specifications, and adjust symmetry between the pinhole and nut opening before putting in a fresh pin. When it has the road sensing suspension, plug in the position sensor to the control arm. First, use a floor jack to lift the outer end of the control arm until it reaches regular riding height, and then bolt it in place according to the correct torque ratings. Put the wheel in place, let the vehicle go down, and tighten all wheel bolts according to manufacturer guidelines.