OEM Chrysler Pacifica Rack And Pinion

Chrysler Pacifica Rack And Pinion Parts and Q&A

• Steering Gear
  4743177AL
  Q: How to Service and Repair a Rack and Pinion Steering Gear on Chrysler Pacifica?

  A:

  Set the front wheels in a straight position and lock the Steering Wheel to service and repair the rack and pinion. Take out the negative Battery Cable and put it somewhere safe, then open the Power Steering Reservoir's cap and remove as much fluid as you can. Lift the vehicle and then take out both front tire and wheel assemblies. When moving the outer tie rods to different gears, unscrew the jam nuts and remove the nuts that fix the outer tie rods to the Steering Knuckle as you hold the rod end stud in place. Use the Remover, Special Tool C-3894-A, to take apart every outer tie rod end from the steering knuckle. Using Remover, Special Tool 6831A, take out the roll pin from the intermediate shaft extension to the rack and pinion shaft and move the intermediate shaft extension off the shaft. Removing the tube nuts will let you detach the return and pressure hoses from the rack and pinion. Take off the two bolts that connect the rack and pinion to the steering rack and, while being careful, slowly move the rack and pinion forward at the top and remove it by moving it out through the left wheel opening, so as not to harm the tie rod boots. If needed, take off the outer tie rod from the inner tie rod and count how many times it turned as you loosen it. If installation is required, install the outer tie rods only after counting the rotations and make sure to replace them in the same way as they were removed. Put the rack and pinion through the left side of the wheel, check that you do not cut the boots on the tie rod and slide the mounting bosses over the slots in the cradle. Then, secure the two bolts and tighten them to 163 Nm (120 ft. lbs.). After cleaning the connections on the Power Steering Hose, change the O-rings and lubricate them with clean power steering fluid; then, install the pressure and return hose, secure their tube nuts to the proper tightness of 31 Nm (275 inch lbs.). Locate where the rack and pinion shaft travels in the middle and match the splines on the intermediate shaft with the splines on the rack and pinion shaft, then slide the intermediate shaft extension onto it. Secure the roll pin that links the intermediate shaft extension to the rack and pinion shaft by using Installer, Special Tool 6831A and be sure the roll pin is centered in the extension before you remove the tool. Push the shaft cover onto the rack and pinion and bolt the outer tie rods to the steering knuckles, tightening the nuts with a torque of 47 Nm (35 ft. lbs.) and turn them another 1/2 turn. Currently, you should just snug the jam nuts, but tighten them properly to 75 Nm (55 ft. lbs.) during the wheel alignment. After installing the tire and wheel sets, tighten their mounting bolts to 135 Nm (100 ft.lbs.), lower the vehicle, attach the negative battery cable and remove the steering wheel holder. The next step is to fill and bleed the system, check for leaks and do a wheel alignment to set the toe to the proper degree.
• Steering Gear
  4809964AE
  Q: How to Remove a Rack and Pinion Steering Gear on Chrysler Pacifica?

  A:

  Begin by ensuring the front wheels are headed straight and lock the Steering Wheel with a wheel holder. Unplug the negative cable from the battery, then isolate it and using a siphon pump, drain out most of the fluid from the reservoir cap. Jack up the car, after that, unscrew the wheel mounting nuts and take out the tires from each side. Should the outer tie rods change over to the updated rack and pinion, removing the tie rod jam nuts on both sides becomes necessary. Disconnect the attachment nut on the outer tie rod as you keep the stud from turning. Each outer Tie Rod End is attached to the Steering Knuckle and can be removed with the Remover, Special Tool C-3894-A. After that, take out the roll pin connecting the intermediate shaft extension to the power steering rack and pinion shaft by threading Remover, Special Tool 6831A, over the roll pin, placing a knurled nut on the end of the Remover and turning the hex nut until the roll pin comes loose. Slide the extension off the rack and pinion shaft. Remove the tube nut linking the return hose to the power steering rack and pinion and take out the return hose, then repeat with the pressure hose, removing its tube nut and taking it off. Maneuver the rack and pinion tie rods until the stop in the rack and pinion is found. Take out the mounting screws from the heat shield at the front of the rack and pinion, as well as the screws securing the cushion retainer on the right stabilizer bar, then remove both parts as one. To remove the rack and pinion, loosen the two bolts from the mounts, gently tilt the unit at the top and pull it out through the left wheel well, not pressing too hard on the tie rod boots. Should removal become necessary, discard the outer tie rods from the inner tie rod space and mark the number of turns for when you place them back.