Ford 5W1Z-3K185-A
Knuckle, Front Passenger Side

Quality service of the steering knuckle demands replacement of suspension fasteners with new parts matching identical part numbers or equivalent standards because low-quality replacements result in major service complications. Reassembly success depends on following all specified torque values to maintain proper retaining force. The maintenance process requires disabling electrical power to the air suspension system to avoid unexpected air spring operation which could shift the vehicle during the work. The driver must activate fire suppression system depowering procedures before beginning work. Set the vehicle to NEUTRAL while on a hoist. The first step should involve taking out both wheel bearing and wheel hub. The holding feature should be utilized to stop stud rotation when removing the tie-rod nut and therefore achieving 80 Nm (59 ft. lbs.) torque upon installation. Support the suspension arms with a jack stand until the stabilizer bar links experience no tension before removing the upper nut while discarding it to tighten the new one to 63 Nm (46 ft. lbs.) at installation. To install the new stabilizer bar links you must first remove the lower link nut and link while discarding the nut and tightening the new one to 55 Nm (41 ft. lbs.). First detach the wiring harness retainer from the steering knuckle before removing the upper ball joint nut and replacing it with a new nut that you should tighten to 150 Nm (111 ft. lbs.). Proceed with the same nut-tightening method for the lower ball joint before taking off the wheel knuckle. The installation process ends by enforcing the reverse uninstall procedures while performing front end alignment checks followed by required adjustments. A fire suppression system on the vehicle needs to be repowered only after completion of all procedures.

The electric power supply to the air suspension system needs to be shut off before starting wheel knuckle work because air springs might unexpectedly inflate or deflate which could make the vehicle shift. Start the process by removing the wheel bearing with its hub. Disable the stud using the holding device before loosening the nut then disconnect the tie-rod from the wheel knuckle. When the suspension reaches its rebound position the stabilizer bar links experience pressure so you need to elevate suspension arms with suitable jack stands to eliminate the pressure. The holding feature helps to prevent the stud from rotating before we remove and discard the first nut. This step enables us to detach both stabilizer bar links and discard their nuts. Activate the holding feature because you will separate the retainer and discard the nut while using the holding feature to stop the stud from rotating. Types of Robertson screws can be removed by first discarding the wheel knuckle and then removing its attached nut. Installation of the new wheel knuckle requires the backward order of removal steps followed by checking and potential adjustment of the front end alignment.

During steering knuckle servicing it is mandatory to replace suspension fasteners with new components that use either identical part numbers or equivalent quality standards to prevent component failure that triggers large service costs. The correct retention depends on strictly meeting torque specification requirements during reassembly procedures. You need to switch off the air suspension system electrical power to stop unexpected air spring inflation or deflation which may cause vehicle shifting during hoisting, jacking and towing. Before continuing with the operation vehicles with fire suppression systems must have their depowering process initiated. Perform the procedure on a hoist with the vehicle in NEUTRAL positioning until you remove the wheel bearing along with the wheel hub. Enable holding on the stud when you detach the tie-rod nut for safety reasons until you reach 80 Nm (59 lb-ft) torque during final installation. Discard the upper stabilizer bar link nut before installing the new one by tightening it to 63 Nm (46 lb-ft). Remove first the lower stabilizer link nut along with the stabilizer bar link before installation when you should discard the nut and install your new one by tightening it to 55 Nm (41 lb-ft). Detach the wheel speed sensor wiring harness retainer from the steering knuckle before removing the upper ball joint nut for the replacement with the new one that requires a torque of 150 Nm (111 lb-ft) during installation. As the last step detach the lower ball joint nut and wheel knuckle then discard the nut before tightening the new one to 150 Nm (111 lb-ft). The service ends by checking front end alignment while following removal steps in reverse order. Repower the fire suppression system only if applicable.

Before starting on the steering knuckle service or repair workers must disable air suspension electrical power to avoid unexpected air spring inflation or deflation which might cause vehicle movement. You must disable the air suspension service switch function. Begin the process by taking off the wheel bearing together with the hub. Apply the holding feature to prevent stud rotation for safe removal of nuts so that you can separate the wheel knuckle from the tie-rod. The stabilizer bar links operate under pressure in rebound positions so the suspension arms need to elevate with an appropriate jack stand to drain pressure from the stabilizer bar links. Apply holding functionality to stop the stud from rotating before you dispose of the nut and then detach the stabilizer bar link by removing the discarded nut. The retainer should be separated and the stud needs protection with the holding feature before you remove and discard the nut. Complete the replacement by discarding the nut followed by removing both the wheel knuckle and the nut. The front end alignment should be checked after installation of new components while making necessary adjustments.

Remove the wheel knuckle and discard the nut.

Use the holding feature to prevent the stud from turning while removing and discarding the nut.

Use the holding feature.

Remove and discard the stabilizer bar link upper nut, then install a new nut tightened to 63 Nm (46 lb-ft).

Raise the suspension arms with a suitable jack stand until the pressure is released from the stabilizer bar links.

Ensure that the electrical power to the air suspension system is turned off to prevent unexpected inflation or deflation of the air springs.

Tighten the new nut to 80 Nm (59 lb-ft).

Tighten the nut to 80 Nm (59 lb-ft).

Ensure they do not hang from the brake hose to prevent damage; instead, remove the bolts and support the assembly with mechanic's wire.

Remove and discard it, then tighten the new one to 150 Nm (111 ft. lbs.) during installation.