ASE A4 practice test questions perfectly solved!

2. A driver says that the front end of his car vibrates up and down while traveling at most road speeds. Tech A says that too much runout of the front wheels could be the cause. Tech B says that a static out of balance of the front wheels could be the cause. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B C. Both Techs are right. Too much runout or static out of balance in the front wheels will cause a vibration 3. A vehicle has front wheel shimmy at low speed and requires increased steering effort. Tech A says that too much positive camber could be the cause. Tech B says that too much Positive caster could be the cause. Who is right? A Tech A only B. Tech B only C. Both A and B D. Neither A or B B. Excessive positive caster will increase steering effort, cause the steering wheel to return too rapidly. cause wander at high speed and shimmy at low speed. 4. 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. Caster that is out of spec will affect steering and handling characteristics, but will not cause tire wear. Whereas, too much toe in or out would severely wear the tires. Additionally, excessive camber would cause inside or outside shoulder wear on the tire, depending on whether the camber was too negative or positive. 5. A vehicle with variable assist power steering has a lack of power assist in both directions. Tech A says That the problem is in the electronic control system. Tech B says that there could be a problem in the steering gear or a bad power steering pump. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B B. Although further diagnosis will be necessary, Tech B is right. Tech A is wrong because, when there is a malfunction in a variable assist power steering system, the system will allow full power steering. 6. A customer complains that a vehicle wanders on a bumpy road and needs continual driver correction to stay straight. What could be Wrong? A. Excessive negative front caster B. Insufficient front toe C. Rear or front bump steer D. All of the above D. Excessive negative caster, insufficient front toe, and front or rear bump steer could cause a vehicle to wander on a bumpy road. 7. While aligning a front end, a technician finds the toe out on turns (turning Radius) to be greater than the manufacturer's Specs and it has 2.0 degrees difference from the left side to the right side. Which, if any, of the following could be the cause? A. Nothing is wrong; the vehicle has a non symmetrical steering design. B. Bent pitman arm C. bent tie-rod D. Both B and C D. either a bent pitman arm or a tie rod could cause the specifications for the toe out on turns to be out of spec. Vehilces with non symmetrical steering systems will have a difference from side to side, but the difference will not exceed the manufacturer's specs and it rarely has a greater than 1.5 degrees difference from side to side. 8. When checking a tire, a tech find it to have too much radial (up and down) runout. Tech A says to rotate the tire and wheel assembly on the mounting studs to correct the problem. Tech B says to rotate the tire on the wheel assembly to attempt to bring the runout within specs. Who is right? A. Tech A Only B. Tech B Only C. Both A and B C. Neither B. Rotating the tire on the wheel will compensate for wheel/tire differential (positioning the highest spot on the tire at the lowest spot on the wheel.) Whereas', rotating the wheel assembly on the mounting studs will have no effect on runout. 9. If you readjust camber on the left front strut, which, if any, of these specs might change A. Right caster B. Left toe and total toe C. SAI D. None of the above. B. Readjusting camber will have an affect on the individual toe for the left wheel as well as the total toe. SAI is not adjustable and generally, caster is not adjustable either on a strut suspension. 10. Too much caster on the left front wheel will cause the __________ A. vehicle to drift to the left B. Left tire to wear on the outside edge C. vehicle to drift to the right D. left tire to wear on the inside edge. C. A vehicle will tend to steer or drift to the side with the least amount of caster. Caster will not cause tire wear, but excessive camber will cause wear to the inside of outside shoulders of a tire. 12. A pressure test is being performed on a car with power steering. The pressure readings taken when the wheels are at the right and left stops are below specs. The tester readings are normal when the tester shutoff valve is closed. tech A says that these readings could be caused by a bad steering gear. tech B says that a bad pump could cause these readings. Who is right? A. Tech A Only B. Tech B Only C. Both A and B D. neither A. A bad steering gear would cause the readings to be low when the steering is at the right and left stops, but the readings would be normal with the tester shutoff valve closed. 13. a vehicle with a manual rack and pinion steering gear has a shimmy. Tech A says that worn rack to frame mounting bushings could be the cause. tech B says that loose inner or outer tie rod ends (sockets) could be the cause. Who is right? C. Both Techs are right. Steering play or looseness may occur if the rack to frame mounting bushings are worn, or if the inner or outer tie rod ends are loose. both of these conditions can result in a shimmy. 14. The ball joints on a Macpherson strut- type suspension are being replaced. Tech A says that coil spring compressor should be installed before separating the control arm and the spindle. Tech B says that the wheel alignment should be checked after the ball joints have been replaced. Who is right? A. tech A Only B. Tech B Only C. Both A and B D. Neither B. The wheel alignment should be checked after the ball joint (or any suspension part) is replaced. It is not necessary to install a coil spring compressor prior to separating the control arm and the spindle because the MacPhearson strut assembly contains a spring. However, a spring compressor should be used if the strut is being disassembled. 15. The rear thrust line reads to the left (drivers side) while the vehicle is at normal ride height. If the wheels were pointing straight ahead, which direction would the vehicle tend to wander A. Veer to the left B. Veer to the right C. Wander to both left and right D. No change occurs B. If the thrust line is to the left and the steering wheel is held straight, the vehicle will veer to the right. This happens because the rear wheels will travel towards the left, Which will force the front of the vehicle to the right. 16. Tech A says that the bearing preload must be set when overhauling a manual steering gear. Tech B says that the sector lash must be set when overhauling a manual steering gear. Who is right? A. Tech A only B. Tech B Only C. Both techs D. Neither A or B C. Both techs are right. Both bearing preload and sector lash adjustments are necessary after an overhaul. Correct sector lash prevents gear binding and excessive steering wheel free play. Correct preload prevents worm end play and loose steering feel. 17. A vehicle with power steering has assist in only one direction. Tech A says that oil leaking past a worm shaft seal ring could be the cause Tech B says a broken ring on the worm piston could be the cause. Who is right? A. Tech A B. Tech B C. Both A and B D. Neither A or B C. Both techs are right. An oil leak past the worm shaft oil sealing ring or a broken ring on the worm piston could cause the power steering to only have assist in one direction. 18. A vehicle with power steering has no assist in either direction. Tech A says that a loose power steering belt could be the cause. Tech B says that a faulty flow control valve could be the cause. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B C. Both techs are right. A faulty control valve will reduce the fluid pressure and cause an increase in steering effort. A loose power steering pump drive belt will create a similar condition. 19. A customer complains of excessive body roll. Which of the following is the MOST likely cause. A. broken stabilizer bar link B. worn ball joint C. weak coil spring D. leaking shock absorber A. The stabilizer bar, also known as the sway bar, is used to control body roll, and a broken link would allow excessive body roll. 20. Tech A says that the wheel bearings can be adjusted by tightening the nut while turning the hub , and then backing off the nut part of a turn. Tech B says the end play in the bearings can be checked using a dial indicator. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither tech C. Both techs are right. Tech A is describing a proper adjustment procedure for tapered roller bearings. tech B is also right because, after the adjustment, there should be 0.001-0.007 Inches end play. However, always consult the vehicle service manual for the specific adjustment procedure. 21. Tech A says that the ride height of a vehicle is always adjustable. Tech B says that the ride height of a vehicle can only be adjusted on certain models. Who is right? A. Tech A only B. Tech B only C. Both A and B D Neither tech B. Ride height is only adjustable on some models. On most models, parts replacement is the only way to correct ride height. 22. Tech A says that caster is not a tire wearing angle. Tech B says that toe-in or Toe-out will cause tire wear. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither Techs C. Both techs are right. Caster will have an effect on steering and handling, but will not cause tire wear. However, if a suspension system has too much toe in or toe out, tire wear will result. 23. Tech A says that if steering axis inclination is out of spec, A bent control arm may be the cause. Tech B says that if steering axis inclination is out of spec, the spindle can be shimmed to correct the problem. Whos is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B A. A bent control arm would cause the angle of pivot points to change and subsequently change the steering axis inclination angle. Tech B is incorrect because shimming a spindle is not a recommended procedure and it would affect eh included angle, not the steering axis inclination angle. 24. Tire cupping is MOST likely caused by: A. Worn shock absorbers B. wheel imbalance C. Loose tie-rod ends D. All of the above D. Tire cupping or scalloping can result from worn shock absorbers, improperly balance wheels/ tires or loose/ defective tie rod ends. 25. Which of the following is most likely to be lubricated and sealed by the manufacturer? A. Needle bearings B. tapered roller bearings C. plain bearings. D. Ball bearings D. Most ball bearings are factory lubricated and sealed for Life. 26. Excessive steering wheel play is felt in the steering wheel on a manual steering system. Tech A says that a worn idler arm could be the cause. Tech B says that a misadjusted mesh preload may be the cause. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither Tech C. Both techs are right. Excessive steering wheel lay may result from a worn idler arm and/or maladjusted mesh preload. 27. A vehicle suspension system is being checked for radial and axial tolerances. Tech A says that ball joints should be checked. Tech B says that The idler arm should be checked. Who is Right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B A. When checking the radial and axial tolerances, an inspection of the ball joints should be performed. The idler arm would not affect radial or axial tolerances. 28. A vehicle has a noise coming from the power steering pump. Tech A says that a loose belt could be the cause. Tech B says that air in the system could be the cause. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B C. Both Techs are right. A loose power steering pump belt and air could both cause power steering pump noise. 29. All of these are types of power steering pumps, Except A. Vane B. Roller C. Slipper D. Crescent D. A power steering pump can be a roller, slipper or vane type. 30. all alignment measurements on a vehicle are within spec, except SAI and Toe-out on turns. Tech A says that these alignments angles are not adjustable, so there is nothing more to do. Tech B says neither of these angles can cause tire wear. Who is right? A. Tech A only B. Tech B only C. Both tech A and B D. Neither A or B D neither tech is right. While it is true that SAI and toe out on turns cannot be adjusted, they indicate that some component is bent and must be replaced. Incorrect SAI will cause changes in camber while turning and incorrect toe out will abrade tire rubber. 31. A car is raised on a lift with the wheels pointed straight ahead and when the engine is started, the wheels slowly turn to the right. Tech A says that a binding upper bearing on a Macpherson strut or an improperly installed RBS Tie-rode end could cause this condition. Tech B says that the power steering valve is out of adjustment. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither Techs B. a binding upper bearing or incorrectly installed RBS tie rod end would pull the steering to a specific point and stop regardless of whether the engine was running or not. Since the engine needs to be running to have this condition occur, the power steering valve is causing the problem. 32. On a 4 wheel driver vehicle with drag link steering, after the alignment is complete and correct, The steering wheel is turned to the left when the vehicle is driving straight ahead. Tech A suggests removing the steering wheel and replacing it in an orientation closer to straight ahead. Tech B suggests advising the driver that the linkage does not include enough adjustment to center the steering wheel. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B C. Both techs are right. Many steering systems with this type linkage geometry do not have fully adjustable toe links, but the vehicles have steering wheel and column splines that allow multiple orientations of the steering wheel to the column. 33. A tire on an alloy wheel is being balanced. Tech A says that clip on weights should be used. Tech B says that tape on should be used. Who is right? A. Tech A only B.Tech B only C. Both A and B D. Neither A or B B. never use clip on weights with cast allow wheels because the clips can scratch the aluminum. Also, there will eventually be electrolytic damage between the steel of the clip and the aluminum of the wheel, particularly in areas where salt is used on the roads in the winter. Not only will the weight fall off, but the wheel may be corroded and damaged as well. 34. A customer is purchasing new front tires for her front- wheel driver vehicle. Tech A says the best way to balance the tires is to mount them on the vehicle and use an on axle spin balancer. Tech B says the best way to balance the tires is to balance them on a spin balancing machine prior to installation. Who is right? A. Tech A B. Tech B C. Both A and B D. Neither A or B B. On axle spin balancing is usually not performed on front wheel drive vehicles because it is less accurate and more difficult. The chief problem is supporting the raised wheel in such a way the half-shaft is perfectly straight coming from the transaxle. The operations of some constant velocity (CV) joints may change the balance as the axle rotates and cause balance readings to be inaccurate. 35. When the suspension is worked up and down on a vehicle equipped with a Macpherson strut type suspension, The camber spec changes more on one side than the other. Tech A says that camber can't be adjusted on a Macpherson Strut. Tech B says that the strut on the side that camber changes the most may be bent. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B B. While some MacPherson strut assemblies do not allow camber or caster adjustments, many vehicles do have eccentrics or slotted mounting holes to provide adjustment. An abnormal change in camber normally indicates a bent strut. 36. A vehicle equipped with power steering exhibits excessive steering effort. All hydraulic system specs are correct and the alignment is within specs. Tech A says that this condition may be caused by corrosion in the steering linkage ball studs. Tech B says that the intermediate shaft U joints could be binding. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither Tech C. Both techs are right. Worn dust boots on ball studs can allow contamination and rusting of ball studs in their sockets. However, some vehicles have an intermediate shaft connecting the steering column with the gear. The U-joints on this shaft are subject to rust and binding. 37. medium-duty light truck is on the alignment rack. Tech A points out that there is no arch at all in the rear leaf springs and says this indicates the springs are either worn out or broken. Tech says that this is normal on newer trucks and is not a cause for concern. Who is right? A. Tech A only B. Tech B only C. Both tech A and B D. Neither A or B B. Advancements in metallurgy have allowed leaf springs to be manufactured with almost no arching, which allows for lower profiles and lighter weight without sacrificing load capacity. 38. A vehicle equipped with a Macpherson Strut type suspension is in the shop for new tires and an alignment. The tire installer noticed that the vehicle has some play in the left side inner tie rod end and informs the alignment Tech. What should the alignment tech tell the customer? A. it is not a problem that will affect alignment. B. He'll align the front end, but they should replace the inner tie rod end soon. C. The inner tie rod end needs to be replaced before an alignment can be performed. D. He can se the vehicles alignment so that the play in the inner tie rod will be compensated for. C. Play in the inner tie rod will not allow a correct alignment to be performed. The tie rod must be replaced prior to performing an alignment.