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    1999 Ford Crown Victoria 4.6L SFI 8cyl

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    Toyota Sienna 2000-06

    Strut (MacPherson Strut) Assembly

    Print

    Overhaul (Coil Spring Removal & Installation)



    1. Before servicing the vehicle, refer to the precautions section.
    2.  
    3. Remove or disconnect the following:
      NOTE
      If equipped, be careful not to damage the oil seal, driveshaft boot and/or speed sensor rotor when removing the steering knuckle.



      Wheel
       



      Shock absorber (strut assembly)
       

    4.  
    5. Install a nut/bolt to the bracket at the lower portion of the strut assembly and secure it in a vise.
    6.  
    7. Compress the coil spring with a spring compressor.
      CAUTION
      The proper tools must be used for this procedure. The spring on the strut is under high pressure and can cause serious injury if not properly removed and installed.

    8.  
    9. Remove or disconnect the following:

      Center retaining nut, by holding the spring seat
       
      Support, dust seal, spring seat, insulator and spring from the strut assembly
       

    10.  

    To install:

    1. Install the spring bumper and lower insulator to the strut assembly.
    2.  
    3. Compress the coil spring and fit the lower end of the spring into the spring seat gap.
    4.  
    5. Install or connect the following:

      Upper insulator, spring seat, dust seal, support and spring seat. Tighten the new retaining nut to 34 ft. lbs. (47 Nm) for 2000-03 models; 36 ft. lbs. (49 Nm) for 2004-06 models.
       

    6.  
    7. Rotate the spring seat so that the OUT mark of the spring seat faces the outside of the vehicle.

      Strut
       
      Wheel
       

    8.  
    9. If required, bleed the brake system and check for leaks.
    10.  
    11. Check and/or adjust the front wheel alignment.
    12.  

    Removal & Installation





    Click image to see an enlarged view

    Fig. View of the front strut assembly and related components-2001-03

    1. Before servicing the vehicle, refer to the Precautions section.
    2.  


    NOTE
    Do not support the weight of the vehicle on the suspension arm; the arm will deform under its weight.

    1. Remove or disconnect the following:

      Wheel
       
      Brake hose and the Anti-lock Brake System (ABS) speed sensor wire from the strut
       
      Sway bar link from the strut
       
      Outer front cowl top panel
       

    2.  
    3. Matchmark the strut lower bracket and camber adjust cam, if equipped.
    4.  
    5. Remove or disconnect the following:

      Lower strut end from the steering knuckle-s lower arm
       
      3 upper strut mounting plate to the upper wheel arch nuts
       
      Strut
       

    6.  

    To install:



    Click image to see an enlarged view

    Fig. Cutaway view of the upper strut bearing position for installation-2001-03

    1. Align the upper suspension support hole with the strut piston or end, so they fit properly.
    2.  
    3. Install or connect the following:

      Strut piston rod end to the upper suspension support. Tighten the new nut to 29-40 ft. lbs. (39-54 Nm).
       

    4.  


    WARNING
    Do not use an impact wrench to tighten the nut.



    Lubricate the suspension support bearing with multi-purpose grease. Pack the upper support space with multi-purpose grease, after installation.
     
    Tighten the 3 suspension support-to-wheel arch nuts to 47 ft. lbs. (64 Nm).
     
    Tighten the strut-to-steering knuckle arm bolts to 156 ft. lbs. (211 Nm).
     
    Sway bar link to the strut. Tighten the nut to 29 ft. lbs. (39 Nm).
     
    Outer front cowl top panel
     
    ABS speed sensor and the brake hose to the strut, if equipped.
     
    Wheel
     



    Click image to see an enlarged view

    Fig. Front suspension and related components-2004

    1. Remove the wheel.
    2.  
    3. Remove the wiper arms.
    4.  
    5. Remove the wiper motor.
    6.  
    7. Remove the top cowl.
    8.  
    9. Remove the stabilizer link from the strut.
    10.  
    11. Loosen the strut rod locknut. Don-t remove it.
    12.  
    13. Remove the brake hose bracket from the strut.
    14.  
    15. Remove the lower strut bolts.
    16.  
    17. Remove the 3 upper strut nuts.
    18.  
    19. Remove the strut.
    20.  
    21. Installation is the reverse of removal. Observe the following torques:

      Upper nuts: 59 ft. lbs. (80 Nm)
       
      Lower nuts/bolts: 155 ft. lbs. (210 Nm)
       
      Strut rod locknut: 36 ft. lbs. (49 Nm)
       
      Stabilizer link: 55 ft. lbs. (74 Nm)
       

    22.  



    Click image to see an enlarged view

    Fig. View of the front strut assembly and related components

    1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
      NOTE
      Do not support the weight of the vehicle on the suspension arm; the arm will deform under its weight.

    2.  
    3. Remove or disconnect the following:

      Wheel
       
      Brake hose and the Anti-lock Brake System (ABS) speed sensor wire from the strut
       
      Sway bar link from the strut
       
      Outer front cowl top panel
       

    4.  
    5. Matchmark the strut lower bracket and camber adjust cam, if equipped.
    6.  
    7. Remove or disconnect the following:

      Lower strut end from the steering knuckle-s lower arm
       
      3 upper strut mounting plate to the upper wheel arch nuts
       
      Strut
       

    8.  

    To install:

    Click image to see an enlarged view

    Fig. Cutaway view of the upper strut bearing position for installation

    1. Align the upper suspension support hole with the strut piston or end, so they fit properly.
    2.  
    3. Install or connect the following:
      WARNING
      Do not use an impact wrench to tighten the nut.



      Strut piston rod end to the upper suspension support. Tighten the new nut to 29-40 ft. lbs. (39-54 Nm).
       



      Lubricate the suspension support bearing with multi-purpose grease. Pack the upper support space with multi-purpose grease, after installation.
       
      Tighten the 3 suspension support-to-wheel arch nuts to 47 ft. lbs. (64 Nm).
       
      Tighten the strut-to-steering knuckle arm bolts to 156 ft. lbs. (211 Nm).
       
      Sway bar link to the strut. Tighten the nut to 29 ft. lbs. (39 Nm).
       
      Outer front cowl top panel
       
      ABS speed sensor and the brake hose to the strut, if equipped.
       
      Wheel
       

    4.  

    The Sienna is equipped with front struts and rear shock absorbers.



    Click image to see an enlarged view

    Fig. View of the front strut assembly and related components-2000-03

    1. Before servicing the vehicle, refer to the precautions section.
      NOTE
      Do not support the weight of the vehicle on the suspension arm; the arm will deform under its weight.

    2.  
    3. Remove or disconnect the following:

      Wheel
       
      Brake hose and the Anti-lock Brake System (ABS) speed sensor wire from the strut
       
      Sway bar link from the strut
       
      Outer front cowl top panel
       

    4.  
    5. Matchmark the strut lower bracket and camber adjust cam, if equipped.
    6.  
    7. Remove or disconnect the following:

      Lower strut end from the steering knuckle-s lower arm
       
      3 upper strut mounting plate to the upper wheel arch nuts
       
      Strut
       

    8.  

    To install:

    Click image to see an enlarged view

    Fig. Cutaway view of the upper strut bearing position for installation-2000-03

    1. Align the upper suspension support hole with the strut piston or end, so they fit properly.
    2.  
    3. Install or connect the following:
      WARNING
      Do not use an impact wrench to tighten the nut.



      Strut piston rod end to the upper suspension support. Tighten the new nut to 29-40 ft. lbs. (39-54 Nm).
       



      Lubricate the suspension support bearing with multi-purpose grease. Pack the upper support space with multi-purpose grease, after installation.
       
      Tighten the 3 suspension support-to-wheel arch nuts to 47 ft. lbs. (64 Nm).
       
      Tighten the strut-to-steering knuckle arm bolts to 156 ft. lbs. (211 Nm).
       
      Sway bar link to the strut. Tighten the nut to 29 ft. lbs. (39 Nm).
       
      Outer front cowl top panel
       
      ABS speed sensor and the brake hose to the strut, if equipped.
       
      Wheel
       

    4.  



    Click image to see an enlarged view

    Fig. Front suspension and related components-2004-06

    1. Remove the wheel.
    2.  
    3. Remove the wiper arms.
    4.  
    5. Remove the wiper motor.
    6.  
    7. Remove the top cowl.
    8.  
    9. Remove the stabilizer link from the strut.
    10.  
    11. Loosen the strut rod locknut. Don-t remove it.
    12.  
    13. Remove the brake hose bracket from the strut.
    14.  
    15. Remove the lower strut bolts.
    16.  
    17. Remove the 3 upper strut nuts.
    18.  
    19. Remove the strut.
    20.  
    21. Installation is the reverse of removal. Observe the following torques:

      Upper nuts: 59 ft. lbs. (80 Nm)
       
      Lower nuts/bolts: 155 ft. lbs. (210 Nm)
       
      Strut rod locknut: 36 ft. lbs. (49 Nm)
       
      Stabilizer link: 55 ft. lbs. (74 Nm)
       

    22.  

     
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