ASE Suspension and Steering 5 — Questions and Answers
Question 1: What is the correct order for adjusting front wheel alignment angles?
- Toe, camber, caster
- Camber, toe, caster
- Caster, camber, toe (Correct answer)
- Caster, toe, camber
Correct answer: Caster, camber, toe
Caster and camber adjustments change toe, so toe is always set last.
Question 2: Installing aftermarket wheels with a different offset than original will most directly change the:
- Caster angle
- Scrub radius (Correct answer)
- Thrust angle
- Toe-out on turns
Correct answer: Scrub radius
Wheel offset moves the tire contact patch relative to the steering axis, which changes scrub radius.
Question 3: Before raising a vehicle with electronic air suspension on a lift, the technician should:
- Disconnect the steering angle sensor
- Turn off the air suspension system switch (Correct answer)
- Deflate the tires
- Remove the height sensors
Correct answer: Turn off the air suspension system switch
Turning off the air suspension stops the system from venting or filling springs while the vehicle is lifted, which could damage parts or shift the vehicle.
Question 4: A ball joint with a wear indicator shows the grease fitting boss flush with or recessed into the socket housing. This means:
- The joint is new and properly seated
- The joint is worn and should be replaced (Correct answer)
- The joint needs grease
- The joint is overtightened
Correct answer: The joint is worn and should be replaced
On wear-indicator ball joints, the boss pulls back into the housing as the joint wears, so a flush or recessed boss means it is worn out.
Question 5: A clunk from the rear of a leaf-spring truck when going over bumps is most likely caused by:
- Worn spring shackle bushings (Correct answer)
- Low tire pressure
- Worn front sway bar links
- Incorrect rear toe
Correct answer: Worn spring shackle bushings
Worn shackle or spring-eye bushings let the leaf spring move and knock over bumps.
Question 6: After setting total toe correctly, the steering wheel is off-center while driving straight. How should it be corrected?
- Remove the steering wheel and re-index it on the splines
- Lengthen one tie rod and shorten the other by an equal amount (Correct answer)
- Adjust only the left tie rod
- Adjust the caster on one side
Correct answer: Lengthen one tie rod and shorten the other by an equal amount
Moving both tie rods equally in opposite directions centers the steering wheel without changing total toe.
Question 7: A stabilizer (sway) bar mainly reduces:
- Brake dive
- Body roll during cornering (Correct answer)
- Wheel tramp
- Steering effort
Correct answer: Body roll during cornering
The sway bar links the left and right suspension and resists body lean in turns.
ASE Suspension and Steering 5
What is the correct order for adjusting front wheel alignment angles?