Symptom Related Diagnostic Procedures

Symptom Chart

Crabbing
Possible Source(s):
- Incorrect rear thrust angle.
Action(s) to take:
- CHECK the rear toe adjustment. For additional information, refer to Specifications
For additional information, refer to Rear Toe Adjustment Rear Toe Adjustment
Possible Source(s):
- Front or rear suspension components.
Action(s) to take:
- INSPECT the front and rear suspension systems. REPAIR or INSTALL new suspension components as necessary. For additional information, refer to Front Suspension
For additional information, refer to Rear Suspension
Possible Source(s):
- Drive axle damaged.
Action(s) to take:
- INSTALL a new rear drive axle/differential. For additional information, refer to Axle Assembly

Drift/Pull
Possible Source(s):
- Unequal tire pressure.
Action(s) to take:
- CHECK and ADJUST the tire pressures. INSPECT the tire for excessive wear. For additional information, refer to Specifications Mechanical Specifications
Possible Source(s):
- Incorrect wheel alignment.
Action(s) to take:
- CHECK and ADJUST the wheel alignment. For additional information, refer to Specifications
Possible Source(s):
- Tires.
Action(s) to take:
- CHECK and ADJUST the tire pressures. INSPECT the tire for excessive wear. For additional information, refer to Specifications Mechanical Specifications
Possible Source(s):
- Unevenly loaded or overloaded vehicle.
Action(s) to take:
- NOTIFY the customer of incorrect vehicle loading.
Possible Source(s):
- Damaged steering components.
Action(s) to take:
- CHECK the steering system. For additional information, refer to Steering System Testing and Inspection
Possible Source(s):
- Brake drag.
Action(s) to take:
- CHECK the brakes. For additional information, refer to Brake System Testing and Inspection

Front Bottoming or Riding Low
Possible Source(s):
- Coil springs.
Action(s) to take:
- CHECK the ride height. INSTALL new springs as necessary. For additional information, refer to Shock Absorber

Incorrect Tire Wear
Possible Source(s):
- Incorrect tire pressure (rapid center rib or inner and outer edge wear).
Action(s) to take:
- CHECK and ADJUST the tire pressure. INSPECT the tire for excessive wear. For additional information, refer to Specifications Mechanical Specifications
Possible Source(s):
- Excessive front or rear toe (rapid inner or outer edge wear).
Action(s) to take:
- CHECK and ADJUST the wheel alignment. For additional information, refer to Front Toe Adjustment Front Toe Adjustment
Possible Source(s):
- Excessive negative or positive camber (rapid inner or outer edge wear).
Action(s) to take:
- CHECK and ADJUST the wheel alignment. For additional information, refer to Four-Wheel Alignment Four-Wheel Alignment
Possible Source(s):
- Tires out of balance (tires cupped or dished).
Action(s) to take:
- BALANCE the tires.

Rough ride
Possible Source(s):
- Spring(s)
Action(s) to take:
- Check and install new spring(s) as necessary. For additional information, refer to Shock Absorber
For additional information, refer to Shock Absorber

Shimmy or Wheel Tramp
Possible Source(s):
- Loose wheel nut(s).
Action(s) to take:
- CHECK and TIGHTEN the wheel nuts to specification. For additional information, refer to Specifications Mechanical Specifications
Possible Source(s):
- Loose front suspension fasteners.
Action(s) to take:
- CHECK and TIGHTEN the suspension fasteners to specification. For additional information, refer to Specifications Front Suspension
Possible Source(s):
- Front wheel bearing(s).
Action(s) to take:
- CHECK the wheel bearings. For additional information, refer to Wheel Bearing and Wheel Hub Front Suspension
Possible Source(s):
- Worn or damaged suspension component bushing.
Action(s) to take:
- CHECK and INSTALL new components as necessary. For additional information, refer to Rear Lower Arm Bushing Service and Repair
For additional information, refer to Shock Absorber Bushing Shock Absorber Bushing
For additional information, refer to Stabilizer Bar Link Bushing Service and Repair
Possible Source(s):
- Wheel/tires.
Action(s) to take:
- CHECK the wheels/tires. BALANCE or INSTALL new wheel/tires as necessary. For additional information, refer to Wheel and Tire Service and Repair
Possible Source(s):
- Loose, worn or damaged ball joint(s).
Action(s) to take:
- CHECK the Ball Joint(s). For additional information, refer to Front Suspension
Possible Source(s):
- Loose, worn or damaged steering components.
Action(s) to take:
- CHECK and INSTALL new components as necessary.
Possible Source(s):
- Front wheel alignment.
Action(s) to take:
- CHECK and ADJUST the wheel alignment. For additional information, refer to Front Toe Adjustment Front Toe Adjustment
Possible Source(s):
- Shock absorber(s).
Action(s) to take:
- CHECK and INSTALL new shock absorber(s) as necessary. For additional information, refer to Shock Absorber
For additional information, refer to Shock Absorber
Possible Source(s):
- Spring(s).
Action(s) to take:
- CHECK and INSTALL new springs as necessary. For additional information, refer to Shock Absorber
For additional information, refer to Shock Absorber

Poor self center action of the steering
Possible Source(s):
- Ball joints.
Action(s) to take:
- CHECK the Ball Joints. For additional information, refer to Suspension System
Possible Source(s):
- Steering components.
Action(s) to take:
- CHECK and INSTALL new components as necessary.

Steering wheel off-center
Possible Source(s):
- Unequal front or rear toe settings.
Action(s) to take:
- CHECK and ADJUST the wheel alignment. For additional information, refer to Front Toe Adjustment Front Toe Adjustment
For additional information, refer to Rear Toe Adjustment Rear Toe Adjustment
Possible Source(s):
- Steering components.
Action(s) to take:
- CHECK and INSTALL new components as necessary.

Sway or roll
Possible Source(s):
- Overloaded, unevenly or incorrectly loaded vehicle.
Action(s) to take:
- NOTIFY the customer of incorrect vehicle loading.
Possible Source(s):
- Loose wheel nut(s).
Action(s) to take:
- CHECK and TIGHTEN the wheel nut(s) to specification. For additional information, refer to Specifications Mechanical Specifications
Possible Source(s):
- Coil spring(s).
Action(s) to take:
- CHECK and INSTALL new coil springs as necessary. For additional information, refer to Shock Absorber
Possible Source(s):
- Loose front stabilizer bar or rear stabilizer bar.
Action(s) to take:
- CHECK and TIGHTEN the stabilizer bar to specification. For additional information, refer to Specifications Front Suspension
For additional information, refer to Specifications Rear Suspension
Possible Source(s):
- Worn lower suspension arm stabilizer bar insulators.
Action(s) to take:
- INSTALL new lower suspension arm stabilizer bar as necessary. For additional information, refer to Stabilizer Bar Link
For additional information, refer to Stabilizer Bar Link Rear Suspension
Possible Source(s):
- Shock absorber(s).
Action(s) to take:
- CHECK and INSTALL new shock absorber(s) as necessary. For additional information, refer to Shock Absorber
For additional information, refer to Shock Absorber

Vehicle Leans to One Side
Possible Source(s):
- Unevenly loaded or overloaded vehicle.
Action(s) to take:
- NOTIFY the customer of incorrect vehicle loading.
Possible Source(s):
- Front or rear suspension components.
Action(s) to take:
- INSPECT the front and rear suspension systems. REPAIR or INSTALL new suspension components as necessary.
Possible Source(s):
- Shock absorber(s).
Action(s) to take:
- CHECK and INSTALL new shock absorber(s) as necessary. For additional information, refer to Shock Absorber
For additional information, refer to Shock Absorber
Possible Source(s):
- Coil spring(s).
Action(s) to take:
- CHECK and INSTALL new spring(s) as necessary. For additional information, refer to Shock Absorber
For additional information, refer to Shock Absorber
Possible Source(s):
- Incorrect ride height. Lateral tilt out of specification.
Action(s) to take:
- CHECK the ride height. INSTALL new spring(s) as necessary. For additional information, refer to Shock Absorber
For additional information, refer to Shock Absorber

Vibration/Noise
Possible Source(s):
- Tires/wheels.
- Wheel bearings.
- Wheel hubs.
- Brake components.
- Suspension components.
- Steering components.
Action(s) to take:
- CHECK and INSTALL new components as necessary. For additional information, refer to Noise, Vibration and Harshness (NVH) Testing and Inspection

Wander
Possible Source(s):
- Unevenly loaded or overloaded vehicle.
Action(s) to take:
- NOTIFY the customer of incorrect vehicle loading.
Possible Source(s):
- Ball joint(s).
Action(s) to take:
- CHECK the Ball Joint(s). For additional information, refer to Suspension System
Possible Source(s):
- Front wheel bearing(s).
Action(s) to take:
- CHECK the wheel bearings.
Possible Source(s):
- Loose, worn or damaged suspension components.
Action(s) to take:
- CHECK and INSTALL new suspension components as necessary.
Possible Source(s):
- Loose suspension fasteners.
Action(s) to take:
- CHECK and TIGHTEN the suspension fasteners to specification. For additional information, refer to Specifications Front Suspension
For additional information, refer to Specifications Rear Suspension
Possible Source(s):
- Steering components.
Action(s) to take:
- CHECK and INSTALL new steering components.
Possible Source(s):
- Wheel alignment (excessive total front toe-out).
Action(s) to take:
- CHECK and ADJUST the wheel alignment. For additional information, refer to Specifications
For additional information, refer to Front Toe Adjustment Front Toe Adjustment