Avenger 2008

Struts (MacPherson Struts)

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Overhaul



Assembly

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009


NOTE
If the coil spring has been removed from the spring compressor, proceed with the next step, otherwise, proceed with Step #3.


NOTE
To determine the flat coil end of the coil spring for the following step, attempt to stand the coil spring on-end on a flat, level surface. If the coil spring stands on end, the end on the flat surface is the flat coil end. If the coil spring falls over, the end on the flat surface is not the flat coil end. Stand the coil spring on the opposite end to verify.

  1. Place the coil spring flat coil end upward (see above note) in the spring compressor following the manufacturer's instructions. Before compressing the spring, rotate the spring so the end of the bottom coil is at approximately the 9 o'clock position as viewed above (or to where the spring was when removed from the compressor). This action will allow the strut (damper) clevis bracket to be positioned outward, away from the compressor once installed.
  2.  
  3. Slowly compress the coil spring until enough room is available for strut assembly reassembly.
  4.  
  5. Install the bearing and upper spring seat (3), and isolator (4) on top of the coil spring (7).
  6.  
  7. Install the upper mount (2) on top of the bearing and upper spring seat (3).
  8.  
  9. Install the lower spring isolator (8) on the spring seat on the strut (damper) (9).
  10.  
  11. Slide the jounce bumper (6) and dust shield (5) onto the strut rod.
  12.  
  13. Install the strut up through the bottom of the coil spring and upper spring seat, mount, and bearing until the lower spring seat contacts the lower end of the coil spring. Rotate the strut as necessary until the end of the bottom coil (2) comes in contact with the stop (1) built into the lower spring isolator.
  14.  
  15. While holding the strut in position, install the nut (1) on the end of the strut rod.
    CAUTION
    Never use impact or high speed tools to remove the strut rod nut. Damage to the strut internal bearings can occur.

  16.  
  17. Install Strut Nut Wrench (2), Special Tool 9362, on the strut rod nut. Next, install a deep socket (1) on the end of the strut rod. While holding the strut rod from turning, tighten the strut rod nut to 44 ft. lbs. (60 Nm) using a torque wrench on the end of Special Tool 9362.
  18.  
  19. Slowly release the tension from the coil spring by backing off the compressor (1) drive completely. As the tension is relieved, make sure the upper mount and bearing align properly. Verify the upper mount does not bind when rotated.
  20.  
  21. Remove the strut assembly from the spring compressor.
  22.  
  23. Install the strut assembly on the vehicle.
  24.  

Disassembly

Specific to:

Chrysler Sebring 2008-2009

Dodge Avenger 2008-2009


NOTE
The strut assembly must be removed from the vehicle for it to be disassembled and assembled.

For the disassembly and assembly of the strut assembly, use strut spring compressor, team PSE tool 223-7400, or the equivalent, to compress the coil spring. Follow the manufacturer's instructions closely.


WARNING
Do not remove the strut rod nut before the coil spring is properly compressed. The coil spring is held under pressure. The coil spring must be compressed, removing spring tension from the upper mount and bearing, before the strut rod nut is removed.

  1. If both struts are being serviced at the same time, mark both the coil spring and strut assembly according to which side of the vehicle the strut is being removed from.
  2.  
  3. Position the strut assembly (2) in the strut coil spring compressor (1) following the manufacturer's instructions and set the lower and upper hooks of the compressor on the coil spring. Position the strut clevis bracket (2) straight outward, away from the compressor.

    Click image to see an enlarged view

    Fig. Position the strut assembly (2) in the strut coil spring compressor (1)

  4.  
  5. Compress the coil spring until all coil spring tension is removed from the upper mount and bearing.
    CAUTION
    Never use impact or high speed tools to remove the strut rod nut. Damage to the strut internal bearings can occur.

  6.  
  7. Once the spring is sufficiently compressed, install Strut Nut Wrench (2), Special Tool 9362, on the strut rod nut. Next, install a deep socket (1) on the end of the strut rod. While holding the strut rod from turning, remove the nut using the strut nut wrench.

    Click image to see an enlarged view

    Fig. While holding the strut rod from turning, remove the nut using the strut nut wrench

  8.  
  9. Remove the clamp (if installed) from the bottom of the coil spring and remove the strut (damper) (9) out through the bottom of the coil spring.

    Click image to see an enlarged view

    Fig. Exploded view of strut assembly

  10.  
  11. Remove the lower spring isolator (8) from the strut seat.
  12.  
  13. remove the dust shield (5) and jounce bumper (6).
  14.  
  15. Remove the upper strut mount (2) from the top of the bearing and upper spring seat (3).
  16.  
  17. Remove the upper spring seat (3) and isolator (4) from the top of the coil spring (5).
    NOTE
    If the coil spring needs to be serviced, proceed with the next step, otherwise, proceed with Step #11.

  18.  
  19. Release the tension from the coil spring by backing off the compressor drive completely. Push back the compressor hooks and remove the coil spring.
  20.  
  21. Inspect the strut assembly components for the following and replace as necessary:

    Inspect the strut (damper) (9) for shaft binding over the full stroke of the shaft.
     
    Inspect the jounce bumper (6) for cracks and signs of deterioration.
     
    Inspect the dust shield (5) for cracks and tears.
     
    Check the upper mount (2) for cracks and distortion and its retaining studs for any sign of damage.
     
    Check the bearing and upper spring seat (3) for any binding.
     
    Inspect the upper and lower spring isolators (4, 8) for material deterioration and distortion.
     
    Inspect the coil spring (7) for any sign of damage to the coating.
     

  22.  

Removal & Installation



  1. Raise and support the vehicle.
  2.  
  3. Remove the tire and wheel assembly.
    NOTE
    If both strut assemblies are to be removed, mark the strut assemblies right or left and keep the parts separated to avoid mix-up. Not all parts of the strut assembly are interchangeable side-to-side.

  4.  
  5. Remove the screw (1) securing the flex hose (2) routing bracket to the strut (6).

    Click image to see an enlarged view

    Fig. Remove the screw (1) securing the flex hose (2) routing bracket to the strut (6)

  6.  
  7. While holding the stabilizer bar link (1) stud stationary, remove the nut (4) securing the link to the strut (3).
    CAUTION
    The strut assembly-to-knuckle attaching bolts (5) are serrated and must not be turned during removal. Hold the bolts stationary in the knuckle while removing the nuts, then tap the bolts out using a pin punch.



    Click image to see an enlarged view

    Fig. While holding the stabilizer bar link (1) stud stationary, remove the nut (4) securing the link to the strut (3)

  8.  
  9. While holding the bolt heads stationary, remove the two nuts (2) from the bolts (5) attaching the strut (3) to the knuckle (6).
  10.  
  11. Remove the two bolts (5) attaching the strut (3) to the knuckle (6) using a pin punch.
  12.  
  13. Lower the vehicle just enough to open the hood without allowing the tires to touch the floor.
  14.  
  15. Remove the three nuts (1) attaching the strut assembly (2) upper mount to the strut tower.

    Click image to see an enlarged view

    Fig. Remove the three nuts (1) attaching the strut assembly (2) upper mount to the strut tower

  16.  
  17. Remove the strut assembly (2) from the vehicle.
  18.  

To install:

  1. Raise the strut assembly into the strut tower, aligning the three studs on the strut assembly upper mount with the holes in strut tower. Install the three mounting nuts on the studs. Tighten the three nuts to 41 ft. lbs. (55 Nm).
    CAUTION
    The strut clevis-to-knuckle bolts are serrated and must not be turned during installation. Install the nuts while holding the bolts stationary in the knuckle.

  2.  
  3. Position the lower end of the strut assembly in line with the upper end of the knuckle, aligning the mounting holes. Install the two attaching bolts. Install the nuts. While holding the bolts in place, tighten the nuts to 103 ft. lbs. (140 Nm).
  4.  
  5. Attach the stabilizer bar link to the strut. Install and tighten the nut while holding the stabilizer bar link stud stationary. Tighten the nut to 35 ft. lbs. (48 Nm).
  6.  
  7. Secure the flex hose routing bracket to the strut with the mounting screw. Tighten the mounting screw to 120inch lbs. (13 Nm).
  8.  
  9. Install tire and wheel assembly.
  10.  
  11. Lower the vehicle.
  12.  

 
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