Pacifica 2006-2008

Lower Control Arms

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Front wheels
     
    Hub and bearing-to-stub axle cotter pin and retainer nut
     
    Front caliper assembly from steering knuckle
     
    Front brake rotor from the hub
     
    Wheel Speed Sensor (WSS) harness connector and unclip the connector and retaining clip from the frame rail
     
    Screw attaching the WSS routing bracket to the strut, open the routing clip at the knuckle and remove the cable
     

  4.  
  5. Push in the outer end of the halfshaft to disengage the splines from the hub splines.

    Tie rod end nut from the steering knuckle by holding the tie rod while loosening the nut, then use tool C-3894-A to separate the tie rod from the knuckle

    Click image to see an enlarged view

    Fig. Use tool C-3894-A to separate the tie rod ends from the knuckle



    Click image to see an enlarged view

    Fig. Place removal tool C-4150A over the ball joint and stud and tighten the tool to release the stud. It may help to rotate the knuckle around so the inside of the knuckle faces outwards

     
    Steering knuckle-to-strut bolts
     
    Steering knuckle from the strut bracket
     

  6.  
  7. Tip the knuckle outward at the top and remove the halfshaft from the hub and suspend the halfshaft using wire.

    Ball joint nut using an impact gun, then reinstall the nut until the top of the nut is even with the stud. This will prevent the stud from distorting while performing the next step.
     

  8.  
  9. Place removal tool C-4150A over the ball joint and stud and tighten the tool to release the stud. It may help to rotate the knuckle around so the inside of the knuckle faces outwards, then remove the tool.

    Knuckle
     
    Bolts attaching the lower control arm to the engine cradle and the control arm
     

  10.  

To install:


NOTE
When installing the lower control arm-to-cradle rear mounting bolts, make sure the flag on the left control arm nut are positioned upwards (above the control arm) and the right control arm nut are positioned downwards (below the control arm).

  1. Install or connect the following:

    New lower control arm and the control arm to cradle bolts from the rear as illustrated and hand tighten
     

  2.  
  3. Clean the ball joint stud and knuckle contact surfaces of grease and dirt to avoid damage.
    WARNING
    The steering knuckle-to-strut assembly bolts are serrated and must not be turned during installation.. Also if the vehicle is equipped with eccentric strut assembly bolts, the eccentric bolt must be installed in the bottom (slotted) hole on the strut bract.


    NOTE
    The strut-to-steering are installed differently on each side. The left hand side bolts are installed from the vehicle rear to front and the right side bolts are installed from the vehicle front to rear.



    Steering knuckle on the ball stud
     
    New knuckle to ball joint nut, then tighten the nut while holding the stud with a hex wrench and tighten to 60 ft. lbs. (81 Nm) plus an additional 90 degrees ( 1 / 4 ) turn
     
    Halfshaft into the hub assembly

    Click image to see an enlarged view

    Fig. Exploded view of the lower control arm mounting, note the orientation of the bolts for installation purposes

     

  4.  
  5. Position the steering knuckle neck into the strut assembly. Install the strut assembly-to-steering knuckle bolts. Install the nuts onto the attaching bolts and torque to 60 ft. lbs. (81 Nm), then tighten an additional 1 / 4 or 90 degrees turn.
  6.  
  7. Clean the tie rod end and knuckle contact areas to prevent damage.

    Click image to see an enlarged view

    Fig. Tightening the ball joint nut

  8.  
  9. Install or connect the following:

    Tie rod end to the knuckle and hand tighten the nut. While using a socket to hold the stud, tighten the nut to 35 ft. lbs. (47 Nm) plus an additional 180 degree ( 1 / 2 turn).
     
    WSS sensor clip, cable, routing clip and attach the connection
     
    Rotor and caliper
     

  10.  
  11. Have an assistant apply the brakes, install the washer, and hub nut. Tighten the nut to 180 ft. lbs. (244 Nm).

    Spring washer, new hub nut and cotter pin
     
    Wheels
     
    Tighten the lower arm frame bolts to 120 ft. lbs. (163 Nm)
     

  12.  
  13. Check and adjust the brake fluid and brakes.
  14.  
  15. Align the vehicle.
  16.  

 
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