00-4 SERVICE INFORMATION PROBLEM POSSIBLE CAUSE CORRECTION Vibration and Shimmy 1. Seal damage and leakage resulting in loss of lubricant, corrosion and exces- sive wear. 2. Tires, wheels, or brake drums out of bal- ance. 3. Bent wheel or out of bound tire. Wheel nuts torqued unevenly. 4. Loose steering linkage components. 5. Worn steering linkage ball joints. 6. Worn upper or lower end ball joints. 7. Wheel loose on the hub. 8. Drive line universal joints rough or defec- tive. This condition may be confused with steering vibration. 9. Engine misses or is out of balance, this may also be confused with steering shimmy. 10. Faulty shock absorbers. 1. Replace damaged parts as necessary. 2.
Balance the tires and wheels, preferably with an on-vehicle type balancer, as this method balances the entire wheel and drum assembly. 3. Replace the wheel and remount the tire, or replace the assembly. 4. Adjust, torque, and repair the linkage as necessary. 5. Replace steering linkage. 6. Replace ball joints. 7. Inspect the wheel bolt holes for damage, and replace the wheel or torque the nuts. 8. Repair the drive line. 9. Correct the miss in the engine, or repair the out of balance condition, clutch, pres- sure plate, or harmonic balancer, etc. 10. Replace the shock absorbers. Hard Steering or Excessive Effort Required at Steer- ing Wheel 1. Low or uneven tire pressure. 2.
Steering linkage kingpins or ball joints need lubrications. 3. Tight or frozen intermediate rod, tie rod or idler socket. 4. Steering gear to column misalignment. 5. Steering gear adjust too tightly. 6. Front wheel alignment incorrect. 7. Steering gear adjusted too tight. 8. Frozen or tight shaft bearings. 9. Lower the U-joint flange rubbing against the adjuster. 10. Tight or binding conditions in steering column. 11. Power cylinder rod nicked or marred. 1. Inflate to specified pressures. 2. Lubricate, and free up kingpins or ball joints. Make certain all fittings take lubri- cant properly. 3. Lubricate or replace as necessary. 4. Align the column. 5. Adjust preload. 6.
Check alignment and correct as neces- sary. 7. Adjust the steering gear. 8. Replace the bearings. 9. Loosen the bolt, assemble and torque properly. 10. Adjust the steering column. 11. Replace the cylinder.