YH4
GRAND
VITARA
3
STEERING, SUSPENSION, WHEELS AND TIRES 3-1
GENERAL DIAGNOSIS 3-1. . . . . . . . . . . . . . . . .
Diagnosis Table 3-1. . . . . . . . . . . . . . . . . . . . . .
TIRE DIAGNOSIS 3-6. . . . . . . . . . . . . . . . . . . . . .
Irregular and/or Premature Wear 3-6. . . . . . .
Wear Indicator 3-6. . . . . . . . . . . . . . . . . . . . . . .
Radial Tire Waddle 3-6. . . . . . . . . . . . . . . . . . .
Radial Tire Lead 3-8. . . . . . . . . . . . . . . . . . . . . .
VIBRATION DIAGNOSIS 3-8. . . . . . . . . . . . . . .
SECTION 3
STEERING, SUSPENSION, WHEELS AND TIRES
DIAGNOSIS 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT END ALIGNMENT 3A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POWER STEERING SYSTEM 3B1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR BAG STEERING WHEEL AND COLUMN 3C1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT SUSPENSION 3D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR SUSPENSION 3E-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WHEELS AND TIRES 3F-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTENTS
GENERAL DIAGNOSIS
Since the problems in steering, suspension, wheels and tires involve several systems, they must all be considered
when diagnosing a complaint. To avoid using the wrong symptom, always road test the vehicle first.
Proceed with the following preliminary inspections and correct any defects which are found.
1) Inspect tires for proper pressure and uneven wear.
2) Raise vehicle on a hoist and inspect front and rear suspension and steering system for loose or damaged parts.
3) Spin front wheel. Inspect for out-of-round tires, out-of-balance tires, bent rims, loose and/or rough wheel bear-
ings.
DIAGNOSIS TABLE
Condition Possible Cause Correction
Vehicle Pulls (Leads) Mismatched or uneven tires.
Tires not adequately inflated.
Broken or sagging springs.
Radial tire lateral force.
Disturbed front end alignment.
Disturbed rear axle alignment.
Brake dragging in one road wheel.
Loose, bent or broken front or rear
suspension parts.
Replace tire.
Adjust tire pressure.
Replace spring.
Replace tire.
Check front end alignment.
Check rear axle alignment.
Repair front brake.
Tighten or replace suspension part.
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