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SECTION 2C

FRONT SUSPENSION

Caution : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.

DESCRIPTION AND OPERATION

FRONT SUSPENSION

The front suspension for this vehicle is a combination of a strut assembly and a knuckle assembly. The strut assembly combines a strut dampener and a spring mounted to the body of the vehicle. The upper end of the strut is isolated by a rubber mount and contains a bearing to allow the strut to turn. The knuckle is attached to the strut assembly and pivots on a ball joint bolted to the control arm. The control arms pivot from the body using rubber bushings.
The ball joint is fastened to the steering knuckle with a pinch bolt and nut, and to the lower control arm withri-vets. The stabilizer bar interconnects both strut assemblies of the vehicle through the stabilizer link and is attached to the front suspension crossmember. Jounce and rebound movements affecting one wheel are partially transmitted to the opposite wheel of the vehicle to stabilize body roll.
When servicing the control arm-to-body attachment and the stabilizer shaft-to-body insulators, make sure the attaching bolts are loose until the control arms are moved to the trim height, which is curb height. Trim height is the normal position to which the control arms move when the vehicle is sitting on the ground. Refer to "General Specifications" in this section.

COMPONENT LOCATOR

FRONT SUSPENSION


UAA2C010
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  1. Stabilizer Shaft
  2. Stabilizer Link Nut
  3. Stabilizer Link
  4. Crossmember
  5. Crossmember-to-Body Front Bolt
  6. Crossmember-to-Control Arm Front Bolt
  7. Stabilizer Shaft-to-Crossmember Clamp Bolt
  8. Control Arm
  9. Ball Joint Rivet
  10. Ball Joint
  11. Piston Rod Nut
  12. Washer
  13. Body-to-Strut Assembly Nut
  14. Strut Mount
  15. Strut Mount Bearing
  16. Upper Spring Seat
  17. Washer
  18. Upper Spring Insulator
  19. Hollow Bumper
  20. Coil Spring
  21. Lower Spring Insulator
  22. Strut
  23. Strut Assembly-to-Steering Knuckle Bolt
  24. Steering Knuckle
  25. Splash Shield
  26. Wheel Bearing
  27. Snap Ring
  28. Hub
  29. Disc Brake Rotor
  30. Caulking Nut

DIAGNOSTIC INFORMATION AND PROCEDURES

STRUT DAMPENER

A strut damper is basically a shock absorber. However, strut dampers are easier to extend and retract by hand than are shock absorbers.

Struts Seem Weak

Checks
Action
Check the tire pressures.
Adjust the tire pressures to the specifications on the tire placard.
Check the load conditions under which the vehicle is normally driven.
Consult with the owner to confirm the owner's understanding of normal load conditions.
Check the compression and rebound effectiveness of the strut dampener.
Quickly push down and then lift up on the corner of the bumper nearest the strut dampener being tested.
Compare the compression and rebound with those of a similar vehicle that has an acceptable ride quality.
Replace the strut dampener, if needed.

Struts Are Noisy

Checks
Action
Check the mountings for looseness or damage.
Tighten the strut dampener mounting nuts. Replace the strut dampener, if needed.
Check the compression and rebound effectiveness of the strut dampener.
Quickly push down and then lift up on the corner of the bumper nearest the strut dampener being tested.
Compare the compression and rebound with those of a similar vehicle that has an acceptable ride quality.
Replace the strut dampener, if needed.

BALL JOINT AND KNUCKLE

Ball Joint Inspection

  1. Raise the front of the vehicle to allow the front suspension to hang free.
  2. Grasp the tire at the top and the bottom.
  3. Move the top of the tire in an in-and-out motion.
  4. Look for any horizontal movement of the knuckle relative to the control arm.
  5. Ball joints must be replaced under the following conditions:

Ball Stud Inspection

Make sure to check the tightness of the ball stud in the knuckle boss during each inspection of the ball joint.
One way to inspect the ball stud for wear is to shake the wheel and feel for movement of the stud end at the knuckle boss.
Another way to inspect the ball stud for wear is to check the fastener torque at the pinch nut. A loose nut can indicate a stressed stud or a hole in the knuckle boss.
Worn of damaged ball joints and knuckles must be replaced.

REPAIR INSTRUCTIONS

ON-VEHICLE SERVICE



UAA2C020
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FRONT STRUT ASSEMBLY

Removal and Installation Procedure

  1. Remove the windshield wiper arm. Refer to Section 9D, Wipers/Washer Systems.
  2. Remove the cowl vent grille. Refer to Section 9R, Body Front End.
  3. Remove the nuts that secure the strut assembly to the body of the vehicle.
  4. Installation Notice
    Tightening Torque
    35 N•m (26 lb-ft)


    UAA2C030
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  5. Raise and suitably support the vehicle.
  6. Remove the front wheels. Refer to Section 2E, Tires and Wheels.
  7. On vehicles equipped with an antilock braking system(ABS), remove the ABS sensor line from the securing bracket on the strut assembly.
  8. Remove the brake line from the securing bracket on the strut assembly.


  9. UAA2C040
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  10. Disconnect the stabilizer shaft link by removing the stabilizer link-to-strut assembly upper nut. Refer to "Stabilizer Link" in this Section.
  11. Disconnect the steering knuckle by removing the steering knuckle-to-strut assembly nuts and bolts.
  12. Remove the strut assembly.
  13. Installation Notice
    Tightening Torque
    100 N•m (74 lb-ft)


UAA2C050
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STABILIZER LINK

Removal and Installation Procedure

  1. Raise and suitably support the vehicle.
  2. Remove the stabilizer shaft-to-stabilizer link nut.
  3. Remove the stabilizer link-to-strut assembly nut.
  4. Remove the stabilizer link.
  5. Installation Notice
    Tightening Torque
    Stabilizer Shaft-to-Stabilizer Link Nuts
    48 N•m (35 lb-ft)
    Tightening Torque
    Stabilizer Link-to-Strut Assembly Nuts
    48 N•m (35 lb-ft)


UAA2C060
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CONTROL ARM

Removal and Installation Procedure

  1. Raise and suitably support the vehicle.
  2. Remove the front wheels. Refer to Section 2E, Tires and Wheels.
  3. Remove the pinch bolt and the nut from the ball joint.
  4. Disconnect the ball joint from the knuckle assembly.
  5. Installation Notice
    Tightening Torque
    60 N•m (44 lb-ft)


    UAA2C070
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  6. Remove the crossmember-to-control arm front bolt.
  7. Remove the crossmember-to-control arm rear bolt and the nut.
  8. Remove the control arm from the vehicle.
  9. Installation Notice
    Tightening Torque
    Crossmember-to-Control Arm Front Bolt
    147 N•m (108 lb-ft)
    Tightening Torque
    Crossmember-to-Control Arm Rear Bolt and Nuts
    110 N•m (81 lb-ft)


UAA2C080
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KNUCKLE ASSEMBLY

Removal and Installation Procedure

Tools Required

    KM-507-B Outer Tie Rod Remover
  1. Raise and suitably support the vehicle.
  2. Remove the front wheels. Refer to Section 2E, Tires and Wheels.
  3. Remove the caulking nut from the axle shaft.
  4. Remove the outer tie rod from the knuckle assembly. Refer to Section 6C, Power Steering Gear.


  5. UAA2C090
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  6. Remove the brake caliper from the rotor. Support the caliper so it dose not hang from the hydraulic brake hose. Refer to Section 4D, Front Disc Brakes.
  7. On vehicles equipped with an antilock braking system(ABS), disconnect the ABS speed sensor electrical connection from the knuckle. Refer to Section 4F, Antilock Brake System.
  8. Remove the rotor and splash shield. Refer to Section 4D, Front Disc Brakes.


  9. UAA2C060
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  10. Remove the ball joint pinch bolt and the nut.
  11. Separate the knuckle from the ball joint.
  12. Notice : Do not over extend the axle joints. When either end of the shaft is disconnected, overextension of the joint can result in separation of internal components and possible joint failure. Use drive axle joint seal protectors whenever performing service on or near the drive axles. Failure to do so can cause internal joint or seal damage and result in possible joint failure.

  13. Separate the drive axle shaft from the wheel hub and support the drive axle.


  14. UAA2C0100
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  15. Remove the bolts and the nuts that connect the knuckle assembly to the strut assembly.
  16. Remove knuckle assembly from the vehicle.
  17. Installation Notice
    Tightening Torque
    Steering Knuckle-to-Strut Assembly Bolts
    100 N•m (74 lb-ft)
    Tightening Torque
    Front Hub Caulking Nut
    280 N•m (206 lb-ft)


UAA2C110
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CROSSMEMBER ASSEMBLY

Removal and Installation Procedure

Tools Required

    DW110-070 Crossmember Support Fixture
  1. Raise and suitably support the vehicle.
  2. Remove the front wheels. Refer to Section 2E, Tires and Wheels.
  3. Remove the exhaust pipe forward of the catalytic converter. Refer to Section 1G, Engine Exhaust.
  4. Disconnect the stabilizer link from the stabilizer shaft. Refer to "Stabilizer Link" in this Section.


  5. UAA2C120
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  6. Disconnect the ball joint from the knuckle Refer to "Knuckle Assembly" in this Section.
  7. Remove the rack and pinion assembly. Refer to Section 6C, Power Steering Gear.
  8. Remove the engine mounting reaction lower rod.


  9. UAA2C130
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  10. Attach the crossmemder support fixture DW110-070 on the transaxle jack.
  11. Support the crossmember with the crossmemder support fixture DW110-070.


  12. UAA2C140
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  13. Remove the crossmember-to-body front bolts.
  14. Remove the crossmember-to-body rear bolts.
  15. Remove the crossmember assembly from the vehicle.
  16. Installation Notice
    Tightening Torque
    Crossmember-to-Body Front Bolt
    196 N•m (145 lb-ft)
    Tightening Torque
    Crossmember-to-Body Rear Bolt
    196 N•m (145 lb-ft)


UAA2C150
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STABILIZER SHAFT AND INSULATORS

Removal and Installation Procedure

  1. Raise and suitably support the vehicle.
  2. Remove the crossmember assembly from the vehicle. Refer to "Crossmember Assembly" in this Section.
  3. Remove the stabilizer shaft-to-crossmember clamp bolts.
  4. Remove the stabilizer shaft, the stabilizer shaft insulator clamp, and the insulators from the crossmember.
  5. Installation Notice
    Tightening Torque
    45 N•m (33 lb-ft)


UAA2C160
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HUB AND BEARING ASSEMBLY

Removal Procedure

Tools Required

    DW340-040-01 Support Bridge
    DW340-040-02 Removal Bearing Adapter
    DW340-040-03 Installation Bearing Adapter
    DW340-040-04 Hub Adapter
    DW340-040-05 Forcing Bolt
    DW340-040-06 Hex Nut
  1. Raise and suitably support the vehicle.
  2. Remove the knuckle from the drive axle. Refer to "Knuckle Assembly" in this Section.
  3. Remove the wheel hub with the support bridge DW340-040-01, the hub adapter DW340-040-04, the forcing bolt DW340-040-05, the hex nut DW340-040-06.


  4. UAA2C170
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  5. Remove the inner snap ring.


  6. UAA2C180
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  7. Remove the wheel bearing with the support bridge DW340-040-01, the removal bearing adapter DW340-040-02, the forcing bolt DW340-040-05, the hex nut DW340-040-06.
  8. Remove the oil seal from the knuckle.


UAA2C190
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Installation Procedure

  1. Install the new oil seal into the knuckle.
  2. Push the wheel bearing into place with the support bridge DW340-040-01, the installation bearing adapter DW340-040-03, the forcing bolt DW340-040-05, the hex nut DW340-040-06.
  3. Install the inner snap ring.


  4. UAA2C200
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  5. Push the wheel hub into place with the installation bearing adapter DW340-040-03, the hub adapter DW340-040-04, the forcing bolt DW340-040-05, the hex nut DW340-040-06.
  6. Install the knuckle into the drive axle.
  7. Installation Notice

UNIT REPAIR



B306C007
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BALL JOINT

Disassembly and Assembly Procedure

  1. Remove the control arm. Refer to "Control Arm" in this section.
  2. Drill off the heads of the three rivets with a 12 mm (0.47 inch) drill bit.
  3. Punch out the rivets with a drift.
  4. Installation Notice
    Tightening Torque
    Ball Joint Pinch Bolt
    60 N•m (44 lb-ft)


B306C019
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CONTROL ARM BUSHINGS

Disassembly and Assembly Procedure

Tools Required

    KM-158 Remover/Installer
  1. Remove the control arm. Refer to "Control Arm" in this section.
  2. Remove the split sleeves from the rear control arm bushing.


  3. B106C020
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  4. Press off the control arm rear damping bushing using a press and the remover/installer KM-158.


  5. B106C021
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  6. Press out the control arm front damping bushing using a press and the remover/installer KM-158.


UAA2C210
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FRONT STRUT

Disassembly and Assembly Procedure

Tools Required

    DW320-010 Suspension Compressor
  1. Remove the strut assembly. Refer to "Strut Assembly" in this section.
  2. Fasten the strut assembly to the suspension compressor DW320-010.
  3. Compress the front spring with the suspension compressor DW320-010.


  4. UAA2C220
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  5. Use an open end wrench to hold the threaded piston rod while removing the piston rod nut and washer with a commercially available double ring spanner, sharply offset.


  6. UAA2C230
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    Important : Record the position of the front spring locator relative to the strut assembly-to-knuckle bracket. Place the front spring locator back in the same position during assembly.

  7. Remove the upper strut mount, the mount bearing, the upper spring seat, the upper sprig insulator, the washer, the hollow bumper, the coil spring, and the lower spring insulator.
  8. Installation Notice
    Tightening Torque
    Piston Rod Nut
    80 N•m (59 lb-ft)

KNUCKLE

Disassembly and Assembly Procedure

  1. Remove the knuckle assembly. Refer to "Knuckle Assembly" in this section.
  2. Remove the rotor. Refer to Section 4D, Front Disc Brakes.
  3. Remove the hub and bearing assembly. Refer to "Hub and Bearing" in this section.
  4. Remove the brake splash shield. Refer to Section 4D, Front Disc Brakes.


UAA2C150
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CROSSMEMBER

Disassembly and Assembly Procedure

  1. Remove the crossmember assembly from the vehicle. Refer to "Crossmember Assembly" in this section.
  2. Remove the stabilizer shaft and insulators. Refer to "Stabilizer Shaft and Insulators" in this section.


  3. UAA2C070
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  4. Remove the control arm. Refer to "Control Arm" in this section.

SPECIFICATIONS

GENERAL SPECIFICATIONS

Application
Unit
Description
Suspension Type
-
Mcpherson (Strut)
Shock Absorber
Maximum Length
mm (inch)
499 (19.6)
Minimum Length
mm (inch)
347 (13.7)
Stock
mm (inch)
152 (6)
Stabilizer Shaft Diameter
mm (inch)
20 (0.8)
Coil Spring Height (No Load)
mm (inch)
439 (17.3)

FASTENER TIGHTENING SPECIFICATIONS

Application
N•M
Lb-Ft
Lb-In
Steering Knuckle-to-Strut Assembly Bolt
100
74
-
Body-to-Strut Assembly Nut
35
26
-
Stabilizer Shaft-to-Stabilizer Link Nut
48
35
-
Strut Assembly-to-Stabilizer Link Nut
48
35
-
Crossmember-to-Control Arm Front Bolt
147
108
-
Crossmember-to-Control Arm Rear Bolt and Nut
110
81
-
Ball Joint Pinch Bolt
60
44
-
Crossmember-to-Body Front Bolt
196
145
-
Crossmember-to-Body Rear Bolt
196
145
-
Stabilizer Shaft-to-Crossmember Clamp Bolt
45
33
-
Piston Rod Nut
80
59
-
Front Hub Caulking Nut
280
206
-

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS TABLE


UAA2C240
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DW320-010 Suspension Compressor

UAA2C250
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DW110-070 Crossmember Remover/Installer

UAA2C260
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J-42468 Strut Piston Rod Nut Wrench

UAA2C280
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DW340-040-02 Wheel Bearing Remove Adapter

UAA2C300
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DW340-040-04 Hub Remove Adapter

UAA2C320
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DW340-040-06 Hex Nut

UAA2C270
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DW340-040-01 Support Bridge

UAA2C290
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DW340-040-03 Wheel Bearing Install Adapter

UAA2C310
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DW340-040-05 Forcing Bolt

UAA2C330
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KM-507-B Ball Joint Remover


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