A4 ASE Suspension and Steering
A pressure test is being performed on a vehicle with power steering. The pres- sure readings taken when the wheels are at the right and left stops are below specs. The readings are normal when the tester shutoff valve is closed. Technician A says that these readings could be caused by a bad steering gear. Technician B says that these readings could be caused by a bad pump. Who is right? (A) A only (B) B only (C) Both A and B (D) Neither A nor B
A.
A vehicle has excessive body sway while cornering. All of the following defects could be the cause of the problem EXCEPT: A. a worn strut rod bushing. B. a weak stabilizer bar. C. a worn stabilizer bar bushing. D. a broken stabilizer link.
A.
A vehicle has excessive tire squeal while cornering. The cause of this problem could be: A. a bent steering arm. B. excessive negative caster. C. worn stabilizer bushings. D. worn-out front struts.
A.
A vehicle pulls to the left while driving straight ahead. The cause of this problem could be: A. more positive camber on the left front wheel than the right front wheel. B. more positive caster on the left front wheel than the right front wheel. C. excessive toe-in. D. improper toe-out on turns on the right front wheel.
A.
A vehicle pulls to the right during braking. Technician A says that a worn strut rod bushing could be the cause. Technician B says that a bent right wheel could be the cause. Who is right? (A) A only (B) B only (C) Both A and B (D) Neither A nor B
A.
All of these could cause tire wear if not within manufacturer's specs EXCEPT: (A) caster. (B) wheel balance. (C) toe-in. (D) camber.
A.
If suspension components are mounted to the cradle, a bent cradle could cause this difference. A. a bent engine cradle. B. worn steering gear mounting bushings. C. loose front wheel bearings. D. loose inner tie rod ends.
A.
On a rear suspension with two longitudinally mounted leaf springs, the left rear spring is sagged and the left rear chassis ride height is less than specified. This problem could result in: A. steering pull to the right while driving straight ahead. B. excessive left rear tire tread wear. C. excessive steering wheel free play. D. excessive left front tire tread wear.
A.
On an integral power steering gear, which of the following indicates excessive play between the rack piston and sector? a. Lost motion within steering gear b. Steering wheel vibration c. Hard steering condition when cold d. Hard steering condition when hot
A.
Technician A says whenever working on the steering column, consult the on-line service information for the recommended airbag disabling procedure. Technician B says the u-joint or flexible coupling must be removed before the steering wheel can be removed. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
A.
The steering on a car with a manual rack-and-pinion steering gear suddenly veers in one direction when one or both front wheels hit a bump. The cause of this problem could be: A. a loose steering gear mounting bushing. B. excessive positive caster on both front wheels. C. worn upper strut mounts. D. worn-out front struts.
A.
The steering wheel sensor is typically located at which of the following locations? a. Base of the steering column b. Under the air bag c. On top of the rack and pinion gear d. Inside the rack and pinion gear
A.
The thrust angle on a front-wheel-drive vehicle is more than specified, and the thrust line is positioned to the left of the geometric centerline. This problem could be caused by excessive: A. toe-out on the left rear wheel. B. toe-out on the right rear wheel. C. positive camber on the left rear wheel. D. wear in the left rear lower ball joint.
A.
Two technicians are discussing vehicle ride height. Technician A says when the vehicle ride height is too low the vehicle could pull to that side. Technician B says ride height does not affect front camber. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
A.
When checking the power steering pump belt tension, for every foot (30.5 cm) of free span, belt deflection should be: A. 0.5 inch (12.7 mm). B. 1 inch (25.4 mm). C. 1.5 inch (38.1 mm). D. 1.75 inch (44.4 mm).
A.
A sport utility vehicle has high steering effort. Technician A says this could be caused by a sheared shift tube. Technician B says the steering column assembly is misaligned. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
B.
Bump steer is experienced during a road test for steering diagnosis. Technician A says the steering gear may require adjustment. Technician B says the Pitman arm may be bent. Who is right? A. A only B. B only C. Both A and B D. Neither A nor B
B.
Excessive looseness is experienced in a power steering gear (non-rack-and-pinion type). The cause of this problem could be a: A. loose or worn power steering belt. B. loose worm shaft bearing preload adjustment. C. scored steering gear cylinder. D. low fluid level in the power steering pump.
B.
Front wheel shimmy may be caused by: A. excessive toe-out. B. improper dynamic wheel balance. C. excessive front wheel setback D. excessive positive camber.
B.
Technician A says the rear camber determines the thrust angle. Technician B says the rear toe angle determines the thrust angle. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
B.
The cause of poor returnability on a manual rack-and-pinion steering gear could be: A. a loose rack bearing adjustment. B. insufficient or improer lubricant on the steering gear. C. loose steering gear mounting bolts. D. excessive positive camber on both front wheels.
B.
This question has the word LEAST. For this question, look for the choice that would LEAST LIKELY cause the described situation. Read the entire question carefully before choosing your answer. While driving a vehicle at 40 miles per hour there is a vibration in the steering wheel. Which of the following is the LEAST likely cause? a. Improper wheel balance b. Worn control arm bushings c. Bent wheel d. Shifted belt inside tire
B.
To remove the manual or power rack-and-pinion steering gear, which procedure should be done first? A. Remove cotter keys from the outer tie rod ends. B. Punch mark the lower universal joint and the steering gear pinion shaft. C. Remove the four stabilizer bar mounting bolts. D. Remove the steering gear mounting bolts.
B.
Two technicians are discussing wheel bearing adjustment on an SLA (short arm long arm) suspension. Technician A says you adjust the front wheel bearings with the vehicle on the ground. Technician B says to use factory procedures when adjusting front wheel bearings. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
B.
When a shock absorber is to be considered for replacement due to a fluid leak, which of the following applies? a. It must show an oil film on the outside. b. It fails the bounce test. c. It should be weighed to determine if it is low on oil. d. It should be removed and inverted to see if it drips oil.
B.
A driver comes in with a wandering concern on an SLA (short arm long arm) suspension. Technician A says a worn relay rod ball socket may be the cause. Technician B says the tie rod adjusting limit may be out of specification. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
C.
A vehicle requires excessive steering effort. The power steering belt is tight and the reservoir is filled to the specified level. The cause of the problem could be: A. worn lower ball joints. B. weak front springs. C. a seized idler arm. D. a weak stabilizer bar.
C.
A vehicle with rack and pinion steering has a shimmy. Technician A says that worn rack-to-frame mounting bushings could be the cause. Technician B says that loose inner or outer tie rod ends (sockets) could be the cause. Who is right? (A) A only (B) B only (C) Both A and B (D) Neither A nor B
C.
All of the following statements about tire inflation are true EXCEPT: A. Overinflation causes excessive wear on the center of the tread. B. Under inflation causes excessive wear on both edges of the tread. C. Tire pressure should be adjusted when the tires are hot. D. Under inflation may cause tire and/or wheel damage.
C.
Technician A says if the steering column input shaft is not aligned correctly there would be noise. Technician B says if the lubricant level is low in a linkage-assist type power steering column, there will be a noise when turning the steering wheel. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
C.
Technician A says many torsion bars are adjustable to allow for ride height adjustment. Technician B says torsion bars are usually marked left and right and should never be switched side to side. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
C.
The front end of a vehicle vibrates up and down while traveling at most road speeds. Technician A says that too much radial runout of the front tires could be the cause. Technician B says that static out-of-balance of the front tires could be the cause. Who is right? (A) A only (B) B only (C) Both A and B (D) Neither A nor B
C.
The front suspension ride height is less than specified on a MacPHerson strut suspension system. The cause of this problem could be any of the following EXCEPT: A. worn-out struts. B. damaged upper strut mounts. C. worn steering gear mounting bushings. D. worn lower control arm bushings.
C.
To remove the power steering pump, which procedure should be done first? A. Remove the hose from the pump, and cap the fittings and hoses. B. Loosen the bracket, or belt tension adjusting bolt, and the pump mounting bolt. Remove the bolt C. Disconnect the power steering return hose from the remote reservoir or pump and allow the fluid to drain D. Remove the tension adjusting bolt and the mounting bolt and remove the pump.
C.
Two technicians are describing camber. Technician A says camber affects tire wear. Technician B says rebound causes a slight negative change in camber on a SLA (Short/Long arm) suspension. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
C.
Two technicians are discussing the replacement of a rebound or jounce bumper. Technician A says if a vehicle fails the jounce test the cause is a defective jounce bumper. Technician B says you need to remove the lower ball joint to replace the jounce bumper on an SLA (short arm long arm) suspension. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
C.
Two technicians are discussing the ride height measuring procedure. Technician A says bent components can cause incorrect ride height. Technician B says for proper measurement of the ride height, the vehicle must have a full tank of fuel. Who is right? a. A only b. B only c. Both A and B d. Neither A nor B
C.
When replacing a lower control arm bushings on a short arm long arm (SLA) suspension, the replacement should be: a. Tightened and torqued in a vise b. Tightened using the torque turn method c. Torqued with vehicle weight on suspension d. Torqued with control arm resting on frame
C.
Which of the following conditions is likely to indicate a worn control arm bushing? a. Ball joint play b. Front suspension sag c. Rubber bushing is cracked d. Fails the bounce test
C.
Which of the following electronically controlled suspension sensors is tested by unbolting it with the ignition on, engine off (KOEO) and reviewing scan tool data for correct operation? a. VSS (vehicle speed sensor) b. WSS (wheel speed sensor) c. G-sensor d. Yaw Rate sensor
C.
While discussing air shock absorbers, Technician A says that some air shock absorbers can be pressurized with a shop air hose. Technician B says if a shock absorber slowly loses its air pressure, shock absorber replacement may be necessary. Who is right? A. A only B. B only C. Both A and B D. Neither A nor B
C.
While discussing front cradle alignment, Technician A says the cradle may be measured at various locations to determine if it is bent. Technician B says on some cradles an alignment hole in the cradle must be aligned with a hole in the chassis. Who is right? A. A only B. B only C. Both A and B D. Neither A nor B
C.
A vehicle wanders while being driven on level roads. Technician A says that too much negative camber could be the cause. Technician B says that too much positive caster could be the cause. Who is right? (A) A only (B) B only (C) Both A and B (D) Neither A nor B
D.
During a wheel alignment, a technician finds the toe-out-on-turns (turning radius) to be incorrect. Which of these could be the cause? (A) Bent pitman arm (B) Bent tie rod (C) Bent idler arm (D) Bent steering arm
D.
Technician A says front wheel setback is usually caused by worn suspension components. Technician B says a slight front wheel setback causes steering pull. Who is right? A. A only B. B only C. Both A and B D. Neither A nor B
D.
The steering pulls to the right while driving straight ahead on a truck with a long-and-short arm front suspension and a leaf spring rear suspension. All of the following defects could be the cause of the problem EXCEPT: A. A broken center bolt in the left rear spring. B. More positive caster on the left front wheel than the right front wheel. C. Low tire pressure on the right side. D. Excessive toe-in on the front wheels.
D.
This question has the word EXCEPT. For this question, look for the choice that could NOT meet the described situation. Read the entire question carefully before choosing your answer. All of the following statements about a conventional shock absorber are true, EXCEPT: a. A slight oil leakage film is considered normal. b. A worn or leaking shock will not cause a vehicle to lean. c. Purge the air from new shocks before installing. d. Oil leakage will cause the vehicle to fail a bounce test.
D.
To remove the manual steering gear (non-rack-and-pinion type), which procedure should be done first? A. Remove the steering gear from the chassis. B. Disconnect the flexible coupling from the worm shaft. C. Remove the steering-gear-to-frame mounting bolts. D. Disconnect the battery ground cable
D.
To remove the power steering gear (non-rack-and-pinion type), which procedure should be done first? A. Disconnect the steering gear shaft from the worm shaft. B. Remove the Pitman arm nut and washer and mark the Pitman arm in relation to the shaft with a center punch. C. Remove the steering gear mounting bolts and remove the steering gear from the chassis. D. Disconnect the hoses from the steering gear, cap the lines, and cap the fittings.
D.
When an electronically controlled four-wheel-steering (4WS) system enters the fail-safe mode: A. voltage is maintained to the rear steering unit. B. the control unit deenergizes the damper relay. C. the rear steering unit moves rapidly to the center position. D. the 4WS lamp is lit on the instrument panel.
D.
When unloading the ball joints on a front suspension with the coil spring located between the lower control arm and the frame: A. a safety stand must be placed under the chassis. B. the shock absorber must be disconnected. C. the ride height must be within specifications. D. a safety stand must be placed under the lower control arm.
D.
Which of these should the technician do first when aligning a light truck equipped with a torsion bar front suspension? (A) Adjust the thrust angle (B) Adjust the caster/camber (C) Check/adjust the toe (D) Check/adjust the ride height (curb height).
D.
