ASE Certification Practice Tests

1. A manual transmission slips out of third gear. This is MOST likely caused by:

2. A rear wheel drive vehicle with a limited slip differential chatters while turning corners. Technician A says excessive pinion preload will cause this differential to chatter around corners. Technician B says that adding the wrong type of fluid will result in this condition. Who is correct?

3. Two technicians are discussing a vacuum operated transfer case. Technician A says a vacuum between 10 "hg and 18 "hg is required to operate this unit. Technician B says the vacuum operates a mode fork to switch between 2WD and 4WD. Who is correct?

4. Technician A says a clutch safety switch is normally closed when the clutch pedal is released. Technician B says to use a multimeter to test the clutch safety switch. Who is correct?

5. Two technicians are discussing a clutch master assembly. Technician A says external leaks are due to the secondary seal. Technician B says hydraulic fluid is hygroscopic and tends to absorb moisture from the atmosphere. Who is correct?

6. A manual transmission jumps out of gear during acceleration. Technician A says loose shift linkage will result in this condition. Technician B says worn motor mounts cause a transmission to slip out of gear while accelerating. Who is correct?

7. Two technicians are discussing a synchronizer assembly in a three speed manual transmission. Technician A says the splines on a synchronizer clutch sleeve should be pointed. Technician B says the teeth on a synchronizer sleeve and ring should be smooth and rounded. Who is correct?

8. A vehicle has a vibration while driving forward that increases with vehicle speed. The LEAST likely cause of this condition is:

9. Two technicians are discussing flywheel resurfacing. Technician A says a mark should be placed on the flywheel and the crankshaft before removal. Technician B says if too much surface is removed from the flywheel, damage will occur to the release bearing. Who is correct?

10. Two technicians are discussing faulty CV joints. Technician A says on a front wheel drive vehicle, faulty inboard and outboard axle joints can make noise while traveling forward in a straight line. Technician B says an outboard CV joint's noise is more prominent while cornering. Who is correct?

11. There is a chirping sound as the clutch pedal is depressed. Technician A says it could be a worn clutch release bearing. Technician B says the sound is a worn transmission synchronizer. Who is correct?

12. Which type of bearing typically requires a preload.

13. A transfer case makes a popping sound in 4WD, only when accelerating from a stop. Which of the following is causing this sound?

14. A vehicle has an excessive vibration at highway speeds. Technician A says pinion shaft companion flange runout will result in this vibration. Technician B says this could be caused by driveshaft runout. Who is correct?

15. The best tool for checking ring gear runout is a:

16. A squeal is heard from the clutch housing only when the clutch pedal is depressed completely to the floor. Technician A says this could be worn counter shaft bearings. Technician B says the squeal is from a faulty pilot bearing. Who is correct?

17. Gold metal shavings are found in the oil after draining a five speed manual transaxle. Technician A says this is a normal condition. Technician B says this is from chipped gear teeth. Who is correct?

18. An all wheel drive vehicle suffers from continuous viscous clutch failure. Which of the following is the cause?

19. A manual transaxle is suffering from clutch chatter. Technician A says that clutch chatter is caused by glazed clutch facings. Technician B says a worn pressure plate will cause clutch chatter. Who is correct?

20. Two technicians are discussing a growling sound in second gear only. Technician A says the grooves on the blocking ring of its synchronizer are rounded. Technician B says that second gear has a chipped tooth. Who is correct?

21. The bushing in a transmission's extension housing is worn on one side. Technician A says this could be caused by binding universal joints. Technician B says this is caused by excessive output shaft end-play. Who is correct?

22. A chirping sound is heard when the clutch pedal is depressed. All of these could make this noise EXCEPT:

23. Technician A says to use a feeler gauge to check the clearance between the shift fork and the synchronizer sleeve. Technician B says a bent shift rail will cause hard shifting. Who is correct?

24. Two technicians are discussing a clutch pressure plate. Technician A says the pressure plate must be replaced if it is warped. Technician B says the pressure plate can be easily disassembled and repaired or resurfaced. Who is correct?

25. Technician A says a technician may replace the ring gear with out replacing the pinion gear as long as it checks out within specifications. Technician B says that ring gear run out is checked with a digital micrometer. Who is correct?

26. A differential's collapsible spacer and pinion bearing preload is being discussed. Technician A says the pinion nut may be loosened to achieve pinion bearing preload. Technician B says an inch pound torque wrench is used to check pinion bearing preload. Who is correct?

27. After a rear differential overhaul there’s a whining sound that increases with vehicle speed. Which of the following would cause this condition?

28. All of the following are true about the part illustrated above EXCEPT.

29. A front wheel drive vehicle makes a clicking sound when cornering. Technician A says this could be caused by the axle's (CV) constant velocity joint. Technician B says it's the axle shaft's torsional damper. Who is correct?

30. The backup lights of a vehicle are inoperative. Technician A says the backup light switch may be stuck closed. Technician B says there could be a loose ground connection. Who is correct?

31. Which of the following can damage the drivetrain of a 4WD vehicle?

32. Two technicians are discussing driveline seals. Technician A says repeated extension housing seal failure could be caused by a pitted axle slip yolk. Technician B says a bent axle will cause axle seal leakage. Who is correct?

33. While shifting a part time 4WD vehicle from 2H to 4H, the indicator light flashes and the vehicle remains in 2H. Technician A says this is caused by a faulty planetary gearset. Technician B says this could be caused by a faulty shift motor. Who is correct?

34. A vehicle has an excessive vibration at highway speeds. Technician A says companion flange runout will result in this vibration. Technician B says this could be caused by driveshaft runout. Who is correct?

35. Shift forks:

36. The shift lever on a manual transmission in a light duty truck is loose and has excessive play in all directions. Which of the following is MOST likely causing this condition?

37. A front wheel drive vehicle makes a growling sound that gets louder as the vehicle turns left. Which of the following is MOST likely correct?

38. Limited slip differentials have all of the following characteristics EXCEPT:

39. The part illustrated above contains:

40. A front-wheel-drive vehicle is diagnosed with a faulty axle. Technician A says a faulty outboard CV joint makes its most noise while taking turns. Technician B says a faulty inboard CV joint makes its most noise while accelerating and decelerating. Who is correct?