Lincoln 5U2Z-18V125-C Kit - Shock Absorber

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The steering linkage and suspension components should be checked periodically as worn or damaged components can lead to excessive tire wear, poor ride quality, reduced fuel economy, and compromised vehicle handling. To check the shock absorbers, park the vehicle on level ground, turn off the engine, and set the parking brake. Push down at each corner of the vehicle and observe if it stops moving and returns to a level position within one or two bounces. If the vehicle continues to move or fails to return to its original position, it may indicate worn or weak shock absorbers. Raise the vehicle and inspect the shock absorbers for fluid leakage, ensuring that any fluid noted is from the shocks and not from another source. Replace the shocks as a set if leakage is present. Additionally, check the shock absorbers for secure mounting and any signs of damage. For the steering and suspension check, visually inspect the components for damage, leaks, and worn seals, boots, and fittings. Clean the lower end of the steering knuckle and have an assistant move the wheel in and out while checking for movement at the steering knuckle-to-control arm balljoint. If there is any movement, the suspension balljoint(s) should be replaced. Grasp each front tire at the front and rear edges, push in at the front and pull out at the rear to feel for play in the steering system components. If any play is noted, check the steering gear mounts and tie-rod ends for looseness. Finally, check the steering gear mount bolt tightness and if the tie-rods are loose, the balljoints may be worn.

The shock absorbers at the rear should be removed after raising and securing the vehicle's rear on jack stands. With automatic leveling rear suspension and coil springs for older models, let the rear axle hang freely until the shock absorbers finish venting through the compressor. Support the rear axle with a floor jack to keep it from falling when the shock absorbers are detached. For air-assisted shock absorbers, depress the retainer ring(s) and remove the lines by pulling them free. The top of the frame has an upper retaining nut for the shock absorber that can be found. Put an inner insulator and washer on top of it before you get your compressed shock absorber through that hole in this frame. Remove lower retaining nut and lower shock absorber mounting stud from mounting bracket. To make sure all air is expelled from the new shock absorber, extend and compress it several times before installing it.

Remove the jackstands and lower the vehicle. Before driving a vehicle equipped with air suspension, turn on the air suspension switch, start the engine, and allow the compressor to inflate the air suspension springs.

The floor jack should be placed under the lower control arm and raised slightly.

The two bolts that attach the lower end of the shock absorber to the lower control arm need to be removed.

Depress the retainer ring(s) and pull the air lines free.

Park the vehicle on level ground, turn off the engine, and set the parking brake. Check tire pressures. Push down at one corner of the vehicle, then release it while noting the movement of the body. It should stop moving and come to rest in a level position within one or two bounces.

If any components of the assembly are worn or damaged, have the unit serviced by a qualified repair shop, or replace it with a rebuilt or new unit.

Note the order of installation for any bushings and grommets above and below the upper control arm. Inspect these parts for cracks, tears, and deterioration, replacing them as necessary.

Check the shock absorbers to ensure they are securely mounted and undamaged. Inspect the upper mounts for damage and wear. If damage or wear is observed, replace the shock absorbers as a set (front or rear).