Alignment Diagnosis
Electronic Steering & Suspension
Struts, Shocks & Mounts
Steering Linkage & Components
Failure Modes & Safety
100

· Radial tire pull must be ruled out before diagnosing this condition.

1. What is vehicle pull?

100

· This sensor provides steering wheel position data to stability control systems.

1. What is a steering angle sensor?

100

· A worn strut mount most commonly causes this noise when turning.

1. What is popping or clunking noise?

100

· Excessive free play is commonly found in this steering gearbox component.

1. What is the pitman shaft or sector shaft?

100

· A broken coil spring most commonly causes this change in ride height.

1. What is uneven ride height or sag?

200

· This alignment condition is the primary cause of steering wheel off-center.

2. What is toe?

200

· Electronic power steering systems typically reduce assist at this vehicle condition.

2. What is highway speed?

200

· This inspection confirms internal shock absorber failure.

2. What is a bounce test?

200

· Worn inner tie rods are best diagnosed by performing this test.

2. What is an inner tie-rod free play test?

200

· This condition can result from loose wheel bearings mistaken for suspension faults.

2. What is noise or looseness?

300

· Excessive cross-caster will cause the vehicle to pull in this direction.

3. What is toward the side with less caster?

300

· This fault may disable power assist but leave mechanical steering intact.

3. What is an EPS fault or loss of electrical power?

300

· Gas-charged shocks primarily reduce this condition.

3. What is foaming or aeration?

300

· This component adjusts toe angle directly.

3. What is a tie rod?

300

· A collapsed strut can cause this braking-related symptom.

3. What is nose dive?

400

· A bent strut housing most directly changes this alignment angle.

4. What is camber?

400

· Ride control modules adjust damping based primarily on this input.

4. What is vehicle speed input?

400

· A MacPherson strut primarily serves this dual function.

4. What is supporting weight and dampening?

400

· Idler arm wear primarily affects this alignment angle.

4. What is toe?

400

· Excessive steering effort after repairs often indicates this was not performed.

4. What is steering wheel centering?

500

· This step should be performed last during an alignment procedure.

5. What is toe adjustment or steering wheel centering?

500

· A hard steering complaint with no pump noise suggests this system type.

5. What is electronic power steering (EPS)?

500

· Loose strut mounting hardware most often causes this symptom.

5. What is knocking or clunking?

500

· This condition may result if steering stops are improperly adjusted.

5. What is reduced turning radius or tire rub?

500

· This failure creates an immediate loss of directional control.

5. What is ball joint separation?

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