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SUSPENSION DIAGNOSIS AND TESTING - SUSPENSION AND STEERING SYSTEM CONDITION POSSIBLE CAUSES CORRECTION FRONT END NOISE 1. Loose or worn wheel bearings. 1. Replace wheel bearings. 2. Loose or worn steering or 2. Tighten or replace components as EXCESSIVE PLAY IN 1. Loose or worn wheel bearings. 1. Replace wheel bearings. 2. Loose or worn steering or 2. Tighten or replace components as 3. Loose or worn steering gear. 3. Adjust or replace steering gear. FRONT WHEELS SHIMMY 1. Loose or worn wheel bearings. 1. Replace wheel bearings. 2. Loose or worn steering or 2. Tighten or replace components as 3. Tires worn or out of balance. 3. Replace or balance tires. 4. Alignment. 4. Align vehicle to specifications. VEHICLE INSTABILITY 1. Loose or worn wheel bearings. 1. Replace wheel bearings. 2. Loose or worn steering or 2. Tighten or replace components as 3. Tire pressure. 3. Adjust tire pressure. 4. Alignment. 4. Align vehicle to specifications. EXCESSIVE STEERING 1. Loose or worn steering gear. 1. Adjust or replace steering gear. 2. Power steering fluid low. 2. Add fluid and repair leak. 3. Column coupler binding. 3. Replace coupler. 4. Tire pressure. 4. Adjust tire pressure. 5. Alignment. 5. Align vehicle to specifications. VEHICLE PULLS TO ONE 1. Uneven tire pressure. 1. Adjust tire pressure. 2. Worn brake components. 2. Repair brakes as necessary. 3. Air in brake line. 3. Repair as necessary. VEHICLE LEADS OR 1. Radial tire lead. 1. Cross front tires. 2. Brakes dragging. 2. Repair brake as necessary. 3. Weak or broken spring. 3. Replace spring. 4. Uneven tire pressure. 4. Adjust tire pressure. 5. Wheel Alignment. 5. Align vehicle. 6. Loose or worn steering or 6. Repair as necessary. 7. Cross caster out of spec. 7. Align vehicle. 2 - 2 SUSPENSION KJ |