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Automotive Service · S5

ASE Suspension & Steering Practice Test

The ASE Suspension & Steering (S5) practice page focuses on diagnosing faults that affect steering control, wheel alignment, ride response, and handling. Its questions use workshop scenarios involving steering columns and gears, linkage and rack components, springs and dampers, wheel bearings, and hydraulic-assist parts. Apply inspection findings to identify likely causes before choosing a repair or adjustment.

Exam overview

Exam providerNational Institute for Automotive Service Excellence
Exam codeS5
CategoryAutomotive Service

About the ASE Suspension & Steering Exam

Suspension and steering diagnosis depends on separating symptoms that may have similar effects on vehicle control. A technician checks for looseness or binding in tie-rod ends, steering shafts, gears, and bearings; assesses whether springs and shock absorbers control wheel movement; and relates alignment readings to steering-wheel position and axle direction. Hydraulic steering work calls for inspection of pump drive components and recognition of pulley or belt faults. Safe procedures matter when work approaches air-bag components, while sequencing matters before steering-gear adjustment or alignment. The practice scenarios ask you to connect observable evidence—such as a notchy steering feel, continued bouncing, pulley wobble, or residual wheel play—to the component or measurement that should be inspected next. This reasoning supports accurate diagnosis and avoids adjusting a system before checking for underlying wear or damage.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

A vehicle's front wheels are raised, and the steering wheel is turned while the engine is off. A rough, notchy feel is present at the steering column even with the intermediate shaft disconnected from the steering gear. Which area should be inspected?

  1. ASteering column bearings or column components
  2. BFront wheel alignment
  3. CPower-steering pump pressure valve
  4. DRear suspension bushings
Show answerCorrect answer: A

Disconnecting the intermediate shaft isolates the column from the steering gear and linkage. If the roughness remains, inspect the column bearings and related column components for damage or binding.

Question 2

During a bounce test, one corner of a vehicle continues oscillating several times after being pushed down and released. Which component is the most likely cause?

  1. AWorn shock absorber or strut damping function
  2. BExcessively tight wheel bearing
  3. CIncorrect steering wheel centering
  4. DWorn tie-rod end
Show answerCorrect answer: A

Repeated oscillation after the suspension is disturbed commonly indicates inadequate damping from a worn shock absorber or strut. Other symptoms and inspection findings should be considered before replacement.

Question 3

A technician removes a steering wheel on a vehicle equipped with an air bag. What is the safest general preparation before beginning work near the air-bag system?

  1. AFollow the manufacturer's disable procedure, including specified power isolation and waiting time
  2. BTurn the ignition on and rotate the wheel to full lock
  3. CDisconnect only the horn wire and begin immediately
  4. DApply battery voltage to the air-bag connector to verify it
Show answerCorrect answer: A

Air-bag systems require the manufacturer's disable procedure to reduce the risk of accidental deployment. This typically includes isolating power and observing a specified waiting period; never probe or energize air-bag circuits unless directed by an approved procedure.

Question 4

A technician is inspecting a hydraulic steering pump drive belt. The belt is correctly tensioned, but the pump pulley wobbles visibly as it rotates. What should be checked next?

  1. APulley condition and its attachment to the pump shaft
  2. BRear wheel toe
  3. CFront strut rebound damping
  4. DSteering wheel spoke alignment
Show answerCorrect answer: A

A visibly wobbling pulley may be damaged or improperly secured, or there may be a problem at the pump shaft. Inspect the pulley and attachment before operating the system further.

Question 5

A steering wheel is off-center after a four-wheel alignment, although the front toe readings are within specification. Which measurement is especially relevant to a rear-axle steer condition?

  1. ARear thrust angle
  2. BEngine crankshaft end play
  3. CFront tire tread depth only
  4. DBrake pedal reserve distance
Show answerCorrect answer: A

Rear thrust angle describes the direction the rear wheels steer relative to the vehicle centerline. An incorrect rear thrust angle can cause the driver to hold the steering wheel off-center while tracking straight.

Question 6

A technician is checking a vehicle's steering linkage with the front wheels raised. Which observation most directly indicates excessive tie-rod-end looseness?

  1. AThe joint moves noticeably relative to its socket during the prescribed check
  2. BThe steering wheel has a smooth, small amount of rotation before the tires respond
  3. CThe tire tread has a uniform appearance across its width
  4. DThe steering gear housing remains cool after a short drive
Show answerCorrect answer: A

A tie-rod end should not have movement beyond the vehicle's specified limit. Relative looseness at the joint can compromise steering control and should be assessed using the prescribed inspection method.

Question 7

A vehicle's steering wheel vibrates at idle while the engine is running, but the vibration decreases when the engine speed changes. Which inspection is a reasonable early step?

  1. AInspect engine and powertrain mounts for deterioration or looseness
  2. BAdjust rear toe to eliminate the vibration
  3. CReplace all suspension springs
  4. DIncrease front caster equally on both sides
Show answerCorrect answer: A

A vibration that is closely related to engine operation can be transmitted through worn or loose mounts. Inspecting mounts is a sensible diagnostic step before making unrelated alignment changes.

How to use this practice test

Access is free. The practice bank contains 50 questions; each session presents up to 20 random questions. Submit a session to see your results, then revisit missed items by identifying the symptom, the relevant inspection, and the evidence that supports the answer.

Preparation tips

  • For steering looseness scenarios, distinguish movement at the tie-rod end, steering gear, intermediate shaft, and wheel bearing before selecting an inspection.
  • Review how shock absorbers control oscillation after a bounce test, and compare that response with symptoms caused by worn springs or loose suspension joints.
  • Practice interpreting alignment relationships: consider rear thrust direction when a steering wheel remains off-center despite acceptable front toe.
  • Before steering-gear adjustment, check for binding, wear, or linkage problems; identify the correct air-bag precautions before steering-wheel removal.
  • For hydraulic steering symptoms, inspect belt condition and tension, pulley runout, and pump-drive behavior as separate possible causes.
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