For vehicles built before 2007, a dealership must align steering angle sensors twice - first time before starting the job and again after completing the work. To safely remove the Rack And Pinion from the front of the car, drive to a flat surface, straighten the wheels, remove and raise the front tires from the ground, put jackstands in place to hold the car up, hit the parking brake, take off the wheel lug nuts, and locate the tire hubs directly below the front of the car. Start by removing the engine shield from bottom, disconnect steering knuckle ends on both sides, note the coupler's match with steering input shaft, unfasten the bolt in the center, take off the coupler from the input shaft without moving the plastic cover. Take care to keep all body parts outside the area where you lift off the subframe. Put the subframe on the floor jack to see and loosen the steering gear bolt while making sure the shaft and coupler can disconnect without binding, and make sure no strained wiring or fuel tubes are underneath. For four wheel active steering models, disconnect the electrical cords before you remove the steering gear. Lay a drain pan under the steering gear, disconnect the power hose using a flare tool, separate the return hose, and secure all sources to hold fluid inside and keep it clean. Take off all steering gear mounting screws, the gear itself, and look at all rubber cushionings for breaks and tearing. Fix or replace any of the cushionings that have problems. When putting the steering gear back, tighten its bolts and the lower intermediate shaft coupler bolt, carefully position the vehicle's back frame when steering the gear's input shaft into the coupler, put and adjust the subframe bolts, reconnect removed cables and wires, refill the power steering pump with the correct fluid, pump out and check the system again. Switch on the engine, let it run to confirm things are working correctly, and check for fluid leaks. Turn off the engine again and check how much fluid is left. Put the wheel back on, attach and screw in the lug nuts, lift the car, press the lug nuts to the right torque, and take the car to a technician to check the alignment and adjust it if needed (with special sensor calibration at a dealer if your model has 4-wheel steering).
Posted by NissanPartsDeal Specialist 
