Mercury AE5Z-3504-BE Gear Assembly - Steering

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To remove the rack and pinion, first disconnect the cable from the negative terminal of the battery. From inside the vehicle under the instrument panel, remove and discard the intermediate shaft pinch bolt. Loosen the front wheel lug nuts, raise the vehicle securely on jack stands, and remove both front wheels. Detach the tie-rod ends from the steering knuckles. If working on an All-Wheel Drive model, disconnect the driveshaft from the transfer case and support it to prevent it from hanging. Remove the front portion of the exhaust system. Place a drain pan under the rack and pinion and detach the power steering pressure and return lines, capping the ends to prevent fluid loss and contamination. For 2013 and later models, disconnect the electrical connectors to the rack and pinion. For 2012 and earlier models, support the rear of the subframe with a floor jack, loosen the front subframe mounting fasteners, remove the rear subframe fasteners, and lower the rear of the subframe approximately three inches. In 2013 and later models, the subframe must be completely removed. Remove the rack and pinion mounting bolts and then take the rack and pinion out of the vehicle. Installation is the reverse of removal, ensuring to align the matchmarks when connecting the rack and pinion input shaft to the intermediate shaft U-joint and install a new pinch bolt. Use new subframe mounting fasteners, a new banjo bolt, and sealing washers for the power steering pressure line, and tighten all fasteners to the specified torque values. Finally, fill the power steering reservoir with the recommended fluid, bleed the power steering hydraulic system, and have the front end alignment checked and adjusted if necessary.