1. Jack-up the vehicle until wheels are off ground.
2. Grasp the bottom of tire and move it in and out in axial direction. If relative movement (B) is observed between the brake disc cover (A) and the end of front arm (D), ball joint (C) may be excessively worn.
3. Grasp the end of front arm and move it up and down. Relative movement (A) between the housing (D) and front arm (C) boss indicates ball joint (B) may be excessively worn.
4. If the relative movement is observed in the preceding two steps, remove and inspect the ball joint. If the free play exceeds standard value, replace the ball joint. 
5. Damage of dust seal
Visually inspect the ball joint dust seal. If it is damaged, remove the front arm. Measure the play of the ball point.
(1) When looseness exceeds standard value, replace the ball joint.
(2) If the dust seal is damaged, replace it with a new ball joint.
NOTE:
When the front arm ball joint has been removed or replaced, check the toe of front wheel. If the front wheel toe is outside the specified range, adjust toe-in.
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(A) |
Dust seal |
Apply force with a tire lever, etc. to check for wear and cracks of the bushing. If there is an abnormal condition, replace the bushings.
1. Unload the cargoes and set the vehicle in curb weight (empty) condition.
2. Check the wheel arch height of the front and rear suspension to ensure that they are within specified values.
3. When the wheel arch height is out of the tolerance value, visually inspect the following components and replace deformed parts.
• Suspension components [Front strut assembly and rear strut assembly]
• Parts connecting suspension and body
4. If no components are deformed, adjust wheel arch height by replacing the suspension where the wheel arch height is outside the specified range.
4. WHEEL ALIGNMENT OF FRONT SUSPENSION
1. Check the alignment of front suspension to make sure the following items are within tolerance.
• Toe-in
• Camber
• Caster (Referential Value)
• Steering angle
2. When the caster angle does not conform to the reference value obviously, visually inspect the following components and replace deformed parts.
• Suspension components [Strut assembly, crossmember, front arm, etc.]
• Parts connecting suspension and body
3. When the toe-in and camber are out of tolerance value, adjust them so that they conform to tolerance value.
4. When the right-and-left turning angles of tire are out of tolerance, adjust to tolerance value.
5. WHEEL ALIGNMENT OF REAR SUSPENSION
1. Inspect the alignment of the rear suspension and check the following items are within the specified range.
• Toe-in
• Camber
• Thrust angle
2. If camber is out of the specification, visually check the items listed below. If the deformation is found, replace the damaged part.
• Suspension component [shock absorber, front lateral link, rear lateral link, upper arm, trailing link, sub frame etc.]
• Parts connecting suspension and body
3. If the toe-in or thrust angle is out of the specification, adjust to the standard value.
6. OIL LEAKAGE OF STRUT AND SHOCK ABSORBER
Visually inspect the front strut and rear strut for oil leakage. Replace the front strut and rear strut if oil leaks excessively.
7. TIGHTNESS OF BOLTS AND NUTS
Check the bolts and nuts for looseness. Retighten the bolts and nuts to specified torque. If the self-locking nuts and bolts are removed, replace them with new ones.
Front suspension:
Rear suspension:
Check the following parts and the fastening portion of the vehicle body for deformation or excessive rusting which impairs the suspension. If necessary, replace the damaged parts with new parts. If minor rust formation, pitting, etc. are noted, remove the rust and take rust prevention measure.
• Front suspension
• Front arm
• Crossmember
• Strut
• Rear suspension
• Sub frame
• Front lateral link
• Rear lateral link
• Upper arm
• Trailing link
• Shock absorber
• In the area where salt is sprayed to melt snow on a road in winter, check suspension parts for damage caused by rust every 12 months after lapse of 60 months. Take rust prevention measures as required.