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ASE A4 Suspension & Steering Certification
Exam | Latest Verified Questions and
Detailed Answers
OVERVIEW DESCRIPTION
This Comprehensive set of multiple choice questions is designed for the ASE A4
Suspension & Steering certification exam, administered by the National Institute for
Automotive Service Excellence (ASE). The content is organized into four core domains
that mirror the official exam blueprint: Steering Systems Diagnosis and Repair,
Suspension Systems Diagnosis and Repair, Wheel Alignment Diagnosis, Adjustment,
and Repair, and Wheel and Tire Diagnosis and Service. Each domain assesses a
technician’s ability to diagnose, service, and repair key components ranging from
steering columns and gears to electronic suspensions, alignment angles, and
tire/wheel assemblies.
1. Steering Systems Diagnosis and Repair
QUESTION 1
A customer complains of excessive steering wheel free play. Which of the following is
the LEAST likely cause?
A. Worn tie rod ends
B. Loose steering gear mounting bolts
C. Worn steering shaft universal joint
D. Overinflated tires
CORRECT ANSWER: D
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EXPERT RATIONALE: Overinflated tires affect ride and tire wear, not free play. The
other items introduce mechanical clearance that increases play.
QUESTION 2
A technician is inspecting a steering column with a tilt mechanism. The steering wheel
can be moved up and down without releasing the tilt lever. What is the most likely
cause?
A. Broken tilt lever return spring
B. Loose steering shaft pinch bolt
C. Worn tilt pivot pins or loose tilt bolts
D. Faulty ignition lock cylinder
CORRECT ANSWER: C
EXPERT RATIONALE: Movement without using the lever points to mechanical wear at
the tilt pivot points or loose fasteners, not a spring or lock issue.
QUESTION 3
On a rack and pinion steering gear, the technician finds fluid leaking from the inner tie
rod bellows boot. What does this indicate?
A. Worn outer tie rod end
B. Damaged rack and pinion seals
C. Loose power steering pump belt
D. Overfilled power steering reservoir
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CORRECT ANSWER: B
EXPERT RATIONALE: Fluid inside the bellows boot means the internal rack seals have
failed, allowing fluid past the rack and into the boot.
QUESTION 4
A recirculating ball steering gear has excessive sector shaft endplay. The correct
adjustment is made with the gear:
A. On center, turning the sector shaft adjuster screw
B. At full lock, tightening the worm bearing preload
C. Off center, adjusting the input shaft nut
D. At center, adjusting the pitman arm nut torque
CORRECT ANSWER: A
EXPERT RATIONALE: Sector shaft (cross shaft) endplay is adjusted on center using the
adjuster screw on the sector cover, after worm bearing preload is set.
QUESTION 5
An electric power steering (EPS) system intermittently loses assist. Which scan tool data
parameter should be checked FIRST?
A. Battery voltage at the ABS module
B. Steering torque sensor signal
C. Fuel level sensor
D. Transmission output speed sensor
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CORRECT ANSWER: B
EXPERT RATIONALE: EPS uses a torque sensor to determine assist; an erratic sensor
signal can cause intermittent loss of assist. Voltage and motor current are secondary
checks.
QUESTION 6
During a dry park check, the steering effort is normal until the wheel is turned about 30
degrees off center, then becomes stiff and noisy. The most likely cause is:
A. Worn rack mount bushings
B. Seized lower ball joint
C. Binding steering shaft universal joint
D. Insufficient power steering fluid
CORRECT ANSWER: C
EXPERT RATIONALE: A binding u-joint in the steering column or intermediate shaft
often causes a change in effort at a specific angle due to angular misalignment or
corrosion.
QUESTION 7
A vehicle with a tilt/telescoping steering column has a loose steering wheel that
wobbles in both tilt and axial directions. Which component should be inspected first?
A. Upper steering shaft bearing
B. Intermediate shaft slip joint
ASE A4 Suspension & Steering Certification
Exam | Latest Verified Questions and
Detailed Answers
OVERVIEW DESCRIPTION
This Comprehensive set of multiple choice questions is designed for the ASE A4
Suspension & Steering certification exam, administered by the National Institute for
Automotive Service Excellence (ASE). The content is organized into four core domains
that mirror the official exam blueprint: Steering Systems Diagnosis and Repair,
Suspension Systems Diagnosis and Repair, Wheel Alignment Diagnosis, Adjustment,
and Repair, and Wheel and Tire Diagnosis and Service. Each domain assesses a
technician’s ability to diagnose, service, and repair key components ranging from
steering columns and gears to electronic suspensions, alignment angles, and
tire/wheel assemblies.
1. Steering Systems Diagnosis and Repair
QUESTION 1
A customer complains of excessive steering wheel free play. Which of the following is
the LEAST likely cause?
A. Worn tie rod ends
B. Loose steering gear mounting bolts
C. Worn steering shaft universal joint
D. Overinflated tires
CORRECT ANSWER: D
,2|Page
EXPERT RATIONALE: Overinflated tires affect ride and tire wear, not free play. The
other items introduce mechanical clearance that increases play.
QUESTION 2
A technician is inspecting a steering column with a tilt mechanism. The steering wheel
can be moved up and down without releasing the tilt lever. What is the most likely
cause?
A. Broken tilt lever return spring
B. Loose steering shaft pinch bolt
C. Worn tilt pivot pins or loose tilt bolts
D. Faulty ignition lock cylinder
CORRECT ANSWER: C
EXPERT RATIONALE: Movement without using the lever points to mechanical wear at
the tilt pivot points or loose fasteners, not a spring or lock issue.
QUESTION 3
On a rack and pinion steering gear, the technician finds fluid leaking from the inner tie
rod bellows boot. What does this indicate?
A. Worn outer tie rod end
B. Damaged rack and pinion seals
C. Loose power steering pump belt
D. Overfilled power steering reservoir
,3|Page
CORRECT ANSWER: B
EXPERT RATIONALE: Fluid inside the bellows boot means the internal rack seals have
failed, allowing fluid past the rack and into the boot.
QUESTION 4
A recirculating ball steering gear has excessive sector shaft endplay. The correct
adjustment is made with the gear:
A. On center, turning the sector shaft adjuster screw
B. At full lock, tightening the worm bearing preload
C. Off center, adjusting the input shaft nut
D. At center, adjusting the pitman arm nut torque
CORRECT ANSWER: A
EXPERT RATIONALE: Sector shaft (cross shaft) endplay is adjusted on center using the
adjuster screw on the sector cover, after worm bearing preload is set.
QUESTION 5
An electric power steering (EPS) system intermittently loses assist. Which scan tool data
parameter should be checked FIRST?
A. Battery voltage at the ABS module
B. Steering torque sensor signal
C. Fuel level sensor
D. Transmission output speed sensor
, 4|Page
CORRECT ANSWER: B
EXPERT RATIONALE: EPS uses a torque sensor to determine assist; an erratic sensor
signal can cause intermittent loss of assist. Voltage and motor current are secondary
checks.
QUESTION 6
During a dry park check, the steering effort is normal until the wheel is turned about 30
degrees off center, then becomes stiff and noisy. The most likely cause is:
A. Worn rack mount bushings
B. Seized lower ball joint
C. Binding steering shaft universal joint
D. Insufficient power steering fluid
CORRECT ANSWER: C
EXPERT RATIONALE: A binding u-joint in the steering column or intermediate shaft
often causes a change in effort at a specific angle due to angular misalignment or
corrosion.
QUESTION 7
A vehicle with a tilt/telescoping steering column has a loose steering wheel that
wobbles in both tilt and axial directions. Which component should be inspected first?
A. Upper steering shaft bearing
B. Intermediate shaft slip joint
