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ASE A4 Suspension and Steering practice questions

210 free questions with answers and explanations.

Practice test
  1. 51.A vehicle with a solid rear axle is being aligned. The technician measures the rear total toe and finds it to be 0.20 degrees OUT. The manufacturer's specification is 0.00 degrees ±0.10 degrees. The technician also notes that the rear thrust angle is -0.30 degrees. Which of the following is the MOST appropriate action?Wheel Alignment Diagnosis, Adjustment, and Repair
  2. 52.A technician is performing a pre-alignment inspection on a vehicle. During the inspection, they notice that the steering wheel is off-center when the vehicle is driven straight, but all toe, camber, and caster measurements are within specifications. What is the MOST likely cause of the off-center steering wheel?Steering System Diagnosis and Repair
  3. 53.A technician is performing a four-wheel alignment. After completing all adjustments, the alignment machine displays a front 'total toe' of +0.10 degrees. The specification for total toe is +0.08 to +0.12 degrees. Which of the following statements is true regarding this reading?Wheel Alignment Diagnosis, Adjustment, and Repair
  4. 54.A technician is diagnosing a vehicle with an electric power steering (EPS) system that has a 'hard steering' complaint, but no diagnostic trouble codes (DTCs) are present. The technician observes that the steering effort is consistently high at all speeds. Which of the following is the MOST likely cause?Steering System Diagnosis and Repair
  5. 55.A technician is performing a four-wheel alignment on a vehicle. The alignment machine displays a front left camber of +1.5 degrees and a front right camber of -0.5 degrees. The specification for camber is 0.0 degrees +/- 0.5 degrees. What is the most appropriate initial adjustment for the front left wheel?Wheel Alignment Diagnosis, Adjustment, and Repair
  6. 56.A technician is performing a four-wheel alignment on a vehicle with a solid rear axle. The alignment machine indicates a rear thrust angle of +0.4 degrees, with a specification of 0.0 degrees +/- 0.1 degrees. Which of the following is the most appropriate action for the technician?Wheel Alignment Diagnosis, Adjustment, and Repair
  7. 57.A technician is performing a four-wheel alignment on a vehicle and observes that the rear thrust angle is -0.75 degrees. The manufacturer's specification for thrust angle is 0.0 degrees ±0.25 degrees. Which of the following conditions is MOST likely indicated by this measurement?Wheel Alignment Diagnosis, Adjustment, and Repair
  8. 58.A customer reports that their vehicle's power steering system frequently makes a loud 'squawking' or 'squealing' noise, especially when turning the steering wheel rapidly or at full lock. The noise is intermittent and seems to coincide with increased steering effort. What is the MOST likely cause?Steering System Diagnosis and Repair
  9. 59.A technician is diagnosing a manual steering gear that exhibits excessive free play at the steering wheel, but no external leaks or abnormal noises are present. The technician notes that the input shaft has minimal rotational play, but the pitman arm shaft (sector shaft) moves excessively before the pitman arm begins to move. Which adjustment or repair is MOST likely needed?Steering System Diagnosis and Repair
  10. 60.A technician is performing an alignment on a vehicle. The alignment machine displays a Steering Axis Inclination (SAI) of 12.0 degrees on the left front and 10.0 degrees on the right front. The specification for SAI is 11.0 +/- 0.5 degrees. What is the MOST likely cause of this discrepancy?Wheel Alignment Diagnosis, Adjustment, and Repair
  11. 61.A vehicle with a hydraulic power steering system requires significantly more steering effort when the engine is at idle compared to higher RPMs. The steering effort normalizes as engine speed increases. A power steering pressure test shows slightly low pressure at idle, but normal pressure above 1500 RPM. What is the MOST likely cause?Steering System Diagnosis and Repair
  12. 62.A customer complains of a noticeable vibration felt through the steering wheel that is worse during braking, but also present to a lesser degree during normal driving. The vibration intensity increases with vehicle speed. What is the MOST likely cause of this condition?Steering System Diagnosis and Repair
  13. 63.A technician is performing a four-wheel alignment on a vehicle with a solid rear axle. The alignment machine shows a rear left toe of +0.20 degrees and a rear right toe of -0.20 degrees. The total rear toe specification is 0.00 degrees +/- 0.10 degrees. What is the most appropriate action for the technician?Wheel Alignment Diagnosis, Adjustment, and Repair
  14. 64.A technician is performing a four-wheel alignment on a vehicle with a non-adjustable rear suspension. After correcting the front alignment, the steering wheel remains off-center to the left when driving straight. The alignment machine indicates a positive thrust angle of +0.5 degrees. Which of the following is the MOST appropriate action?Wheel Alignment Diagnosis, Adjustment, and Repair
  15. 65.A customer reports a grinding noise when turning the steering wheel, particularly at low speeds, on a vehicle equipped with a rack-and-pinion steering system. The noise sounds metallic and is felt slightly through the steering wheel. Power steering fluid level is correct and clean, and the power steering pump is quiet. What is the MOST likely cause?Steering System Diagnosis and Repair
  16. 66.A vehicle comes into the shop for an alignment check. The alignment machine shows that the front left caster is +3.5 degrees and the front right caster is +2.0 degrees. The manufacturer's specification for caster is +3.0 degrees ±0.5 degrees. The vehicle is reported to pull to the right. Which of the following is the MOST likely cause of the pull?Wheel Alignment Diagnosis, Adjustment, and Repair
  17. 67.A customer reports that their vehicle's power steering system is making a high-pitched squealing noise, especially when turning the steering wheel to its full lock. Upon inspection, the technician observes a loose and glazed power steering pump belt. What is the MOST likely cause of the noise and reduced assist?Steering System Diagnosis and Repair
  18. 68.A vehicle is undergoing a four-wheel alignment. After completing all pre-alignment checks and ensuring the vehicle is level, the technician performs the runout compensation procedure. During this procedure, the alignment machine displays an error message indicating 'Runout Compensation Failed - Excessive Wheel Runout'. What is the most appropriate next step for the technician?Wheel Alignment Diagnosis, Adjustment, and Repair
  19. 69.A vehicle exhibits a persistent, light rattling noise from the steering column area, particularly noticeable when driving over small road imperfections or when the steering wheel is slightly moved up and down. The steering effort feels normal, and there is no excessive play in the steering linkage. What is the MOST likely cause?Steering System Diagnosis and Repair
  20. 70.A technician is performing a four-wheel alignment. After adjusting the rear toe and thrust angle to specification, the technician moves to the front. The alignment machine shows a front right camber of -1.2 degrees, with a specification of -0.5 degrees +/- 0.5 degrees. The vehicle has an upper control arm with shims. How should the technician adjust the front right camber?Wheel Alignment Diagnosis, Adjustment, and Repair
  21. 71.A customer reports that their vehicle's steering feels 'heavy' and requires significantly more effort to turn, especially at low speeds. The power steering fluid level is correct and appears clean. A visual inspection reveals a collapsed power steering pressure hose. What is the MOST likely impact of this collapsed hose on the steering system?Steering System Diagnosis and Repair
  22. 72.A technician is performing an alignment on a vehicle and has set the front camber and caster to specification. When adjusting the front toe, the technician notices that turning the left tie rod adjusting sleeve clockwise moves the left wheel's toe-in, but turning the right tie rod adjusting sleeve clockwise moves the right wheel's toe-out. Which of the following is the MOST likely reason for this discrepancy?Wheel Alignment Diagnosis, Adjustment, and Repair
  23. 73.A vehicle exhibits a strong pull to the left and delayed steering wheel returnability after a suspension repair. The technician measures the front alignment angles and finds the following: Front Left Caster +1.0 degrees, Front Right Caster +3.0 degrees. Manufacturer's specification for caster is +2.5 degrees ±0.5 degrees. Which of the following is the MOST appropriate adjustment to correct the pull and returnability?Wheel Alignment Diagnosis, Adjustment, and Repair
  24. 74.A technician is performing a four-wheel alignment. The alignment machine has just completed the 'runout compensation' procedure. What is the PRIMARY purpose of this procedure?Wheel Alignment Diagnosis, Adjustment, and Repair
  25. 75.After performing all necessary camber and caster adjustments on a vehicle, a technician proceeds to adjust the front toe. The alignment machine indicates a total front toe of -0.25 inches. The specification for total front toe is +0.10 inches +/- 0.05 inches. Which adjustment is required?Wheel Alignment Diagnosis, Adjustment, and Repair
  26. 76.A technician is diagnosing a manual steering gearbox that exhibits excessive free play at the steering wheel. After confirming proper adjustment of the steering gear sector shaft pre-load, the technician still measures 3 inches of free play at the steering wheel rim. What is the MOST likely cause?Steering System Diagnosis and Repair
  27. 77.A technician is performing a four-wheel alignment on a vehicle with an independent rear suspension. The alignment machine indicates a rear thrust angle of +0.3 degrees, with a specification of 0.0 degrees +/- 0.1 degrees. How should the technician proceed to correct this condition?Wheel Alignment Diagnosis, Adjustment, and Repair
  28. 78.A customer reports a 'clunking' noise from the front suspension when going over bumps or turning sharply at low speeds. The technician inspects the steering linkage and finds excessive vertical play in the outer tie rod end. Which of the following is the most likely cause of this noise?Steering System Diagnosis and Repair
  29. 79.A technician is performing a pre-alignment inspection. The customer reports a feeling of 'looseness' in the steering and slight wander at highway speeds. The technician observes that the inner tie rod ends have noticeable axial (in-and-out) play when pulled and pushed. How would this condition primarily affect the vehicle's handling?Steering System Diagnosis and Repair
  30. 80.A customer complains of a noticeable 'dead spot' in the steering, where the steering wheel can be turned a small amount left or right without any corresponding movement of the road wheels. The technician finds no play in the tie rod ends or other steering linkage components, and the pitman arm is tight on the sector shaft. This vehicle uses a recirculating ball steering gear. What is the MOST likely cause of this 'dead spot'?Steering System Diagnosis and Repair
  31. 81.A customer complains of a noticeable 'popping' or 'clicking' noise coming from the front end, particularly when turning sharply at low speeds. The technician inspects the steering linkage and finds no excessive play in the tie rod ends or ball joints. What is the MOST likely cause of this noise?Steering System Diagnosis and Repair
  32. 82.A technician is performing an alignment on a vehicle and observes that the front left Steering Axis Inclination (SAI) is 12.0 degrees and the front right SAI is 10.5 degrees. The specification is 11.0 degrees +/- 0.5 degrees. All other alignment angles are within specification. This difference typically indicates a problem with which of the following?Wheel Alignment Diagnosis, Adjustment, and Repair
  33. 83.A technician is performing a four-wheel alignment. The alignment machine displays a front left caster reading of +2.5 degrees and a front right caster reading of +3.5 degrees. The specification for caster is +2.0 to +3.0 degrees with a maximum cross-caster (split) of 0.5 degrees. What is the correct action the technician should take?Wheel Alignment Diagnosis, Adjustment, and Repair
  34. 84.A technician is performing an alignment on a vehicle and observes that the front left Included Angle (IA) is 25.0 degrees and the front right IA is 23.0 degrees. The specification for Included Angle is 24.0 +/- 0.5 degrees. The front left camber is -1.0 degrees and the front right camber is +1.0 degrees. What is the MOST likely cause of the IA discrepancy?Wheel Alignment Diagnosis, Adjustment, and Repair
  35. 85.A vehicle exhibits a strong pull to the left and delayed steering wheel returnability after turns. The alignment machine shows a front left caster of +1.0 degrees and a front right caster of +2.5 degrees. The manufacturer specification for caster is +2.0 degrees +/- 0.5 degrees. Which adjustment should the technician prioritize?Wheel Alignment Diagnosis, Adjustment, and Repair
  36. 86.A technician is inspecting a vehicle with a complaint of a clunking noise heard when turning the steering wheel at low speeds or when going over bumps. The technician finds excessive play in the inner tie rod ends. What is the MOST appropriate next step in diagnosing or repairing this issue?Steering System Diagnosis and Repair
  37. 87.A technician is diagnosing a vehicle with a complaint of a 'popping' or 'clicking' noise heard only when turning the steering wheel, particularly at slow speeds or when the suspension is articulating. The sound seems to come from the area of the front strut towers. What is the MOST likely cause of this noise?Steering System Diagnosis and Repair
  38. 88.A vehicle with an electric power steering (EPS) system develops a 'notchy' or 'jerky' feeling in the steering wheel that is inconsistent and often disappears and reappears. Diagnostic trouble codes (DTCs) point to an intermittent communication error between the EPS control module and the vehicle's Body Control Module (BCM). Which of the following is the MOST appropriate next diagnostic step?Steering System Diagnosis and Repair
  39. 89.A technician is diagnosing a vehicle with an electric power steering (EPS) system that has a warning light illuminated and a diagnostic trouble code (DTC) indicating a 'Steering Position Sensor Circuit Malfunction'. Which of the following is the MOST appropriate initial diagnostic step?Steering System Diagnosis and Repair
  40. 90.A technician is performing a four-wheel alignment. After completing all pre-alignment checks and runout compensation, the alignment machine displays the current angles. The technician notices that the front total toe is -0.50 degrees, and the specification is +0.05 degrees +/- 0.05 degrees. Which of the following is the correct interpretation and adjustment?Wheel Alignment Diagnosis, Adjustment, and Repair
  41. 91.A client complains of a vehicle pulling to the right. During a four-wheel alignment, the technician observes that the rear thrust angle is +0.8 degrees. The specification for thrust angle is 0.0 degrees +/- 0.2 degrees. The front alignment angles are all within specification. What is the most likely effect of this thrust angle on the vehicle's handling?Wheel Alignment Diagnosis, Adjustment, and Repair
  42. 92.A technician is performing a road test on a vehicle with a complaint of a 'loose' steering feel and excessive play in the steering wheel. During the inspection, the technician observes that when the steering wheel is turned, the steering shaft rotates, but there is a noticeable delay and slack before the input pinion on the rack-and-pinion assembly begins to move. Which of the following is the MOST likely cause?Steering System Diagnosis and Repair
  43. 93.A client complains of excessive steering effort and a tendency for the steering wheel to not return to center after turns. The vehicle does not exhibit any pulling or drifting on straight roads. Which of the following alignment angles is MOST likely the cause of these symptoms?Wheel Alignment Diagnosis, Adjustment, and Repair
  44. 94.A technician is inspecting a vehicle with a complaint of a clunking noise heard when turning the steering wheel from side to side, particularly when stationary or at very low speeds. There is also a slight amount of play felt in the steering wheel. During the inspection, the technician grasps the inner and outer tie rod ends and attempts to move them. Which of the following conditions would MOST directly cause the described symptoms?Steering System Diagnosis and Repair
  45. 95.A technician is using an alignment machine and notices that the "runout compensation" procedure is taking an unusually long time and frequently fails. Which of the following is the MOST likely cause of this issue?Wheel Alignment Diagnosis, Adjustment, and Repair
  46. 96.A technician is performing an alignment on a vehicle and observes that the front left caster is +2.5 degrees and the front right caster is +3.5 degrees. The specification is +3.0 degrees +/- 0.5 degrees. How will this caster split likely affect the vehicle's handling?Wheel Alignment Diagnosis, Adjustment, and Repair
  47. 97.A technician is performing a four-wheel alignment. After completing the front and rear toe adjustments, the alignment machine shows a front total toe of 0.05 degrees IN and a rear total toe of 0.00 degrees. The steering wheel is centered. The vehicle specifications require a front total toe of 0.10 degrees IN ±0.05 degrees and a rear total toe of 0.00 degrees ±0.05 degrees. Which of the following is the MOST appropriate next step?Wheel Alignment Diagnosis, Adjustment, and Repair
  48. 98.A technician is performing a four-wheel alignment and notes that the front total toe is 0.10 degrees IN. The manufacturer's specification is 0.05 degrees ±0.05 degrees total toe. The vehicle exhibits excessive tire wear on the outer edges of the front tires. Which of the following adjustments should the technician make?Wheel Alignment Diagnosis, Adjustment, and Repair
  49. 99.A vehicle with hydraulic power steering is exhibiting a persistent humming or groaning noise that is most prominent when the steering wheel is held at full lock, and the power steering fluid appears foamy. The technician has confirmed the fluid level is correct. What is the MOST likely cause of these symptoms?Steering System Diagnosis and Repair
  50. 100.When performing a four-wheel alignment on a vehicle, a technician discovers that the rear camber is out of specification on one side, but the vehicle's rear suspension is non-adjustable. Which of the following is the MOST appropriate action?Wheel Alignment Diagnosis, Adjustment, and Repair