ASE Automatic Transmissions Study Set Guide 2025

After a long drive red fluid is seen on the transmission case and under the chassis of a vehicle. Technician A says this can be caused by fluid aeration. Technician B says this could be caused by engine overheating. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-C. Both A and B The MIL is illuminated and the transmission only operates in third and reverse gears. Which of the following is the MOST likely cause of this condition? A. Adaptive learning. B. High line pressure. C. Low line pressure. D. Limp-in mode. - Correct Ans-D. Limp-in mode. Which of the following affects a transmission's shift points in relation to vehicle speed? A. The throttle valve. B. The governor. C. Both of these. D. Neither of these. - Correct Ans-B. The governor While testing the TCM of an electronic automatic transmission the technician should use at least a: A. 1 Megohm tester. B. 5 Megohm tester. C. 10 Megohm tester. D. 20 Megohm tester. - Correct Ans-C. 10 Megohm tester. An automatic transaxle slips only while turning corners. Which of the following has caused this condition? A. Worn Band B. Torque Converter Clutch C. Low Fluid Level D. Planetary Gearset - Correct Ans-C. Low Fluid Level Refer to the chart above. Which gear ratio best represents overdrive? A. 4.027:1 B. 0.852:1 C. 3.064:1 D. None of these. - Correct Ans-Answer B is correct. This ratio (0.852:1) represents overdrive A final drive assembly has been replaced. Technician A says to use an inch pound torque wrench to check for proper pinion preload. Technician B says to use a dial indicator to check the ring gear's backlash. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-C. Both A and B An automatic transaxle loses pressure as it shifts from first to second gear. Technician A says this could be caused by the clutch piston seal. Technician B says this could be caused by a stuck servo. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-A. Technician A An automatic transmission has a late delayed shift from first to second gear. All other shift points are normal. The 1-2 shift valve is suspected of sticking in its bore. Technician A says to clean the transmission valves and valve body to remove tarnish and dry them with compressed air before placing them back into service. Technician B says a slightly bent spool valve can be repaired and placed back into service. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-A. Technician A Technician A says to pressure test a transmission if an internal leak is suspected. Technician B says pressure testing ports are located on the transmission case. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-C. Both A and B 11. Technician A says a transmission brake band is a holding device. Technician B says a hydraulically controlled servo is used to activate the brake band. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-C. Both A and B Automatic Transmissions use all of these pressures for shift control EXCEPT: A. Governor B. Torque Converter C. Vacuum Modulator D. Throttle Valve - Correct Ans-B. Torque Converter All of these are types of transmission oil pumps EXCEPT. A. Rotor B. Vane C. Diaphragm D. Gear - Correct Ans-C. Diaphragm An automatic transmission has delayed initial engagement when shifted into drive and reverse. Technician A says a clogged transmission oil filter will result in this condition. Technician B says oil pump starvation causes delayed shift engagement. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-C. Both A and B Technician A says a TR sensor (Transmission Range Sensor) can be tested using an ohmmeter. Technician B says an improperly adjusted neutral safety switch can prevent a vehicle from starting. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-C. Both A and B Two technicians are removing a transmission's valve body. Technician A says the separator plate blocks off some passages while allowing fluid to flow in others. Technician B says the seat for a ball-type check valve may be located in the separator plate. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-C. Both A and B A vehicle lacks power when accelerating from a stop. Technician A says this could be caused by chipped teeth on the pinion gears. Technician B says the torque converter's one-way stator clutch may be slipping. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-B. Technician B Which member of the planetary gear set has internal teeth? A. The sun gear. B. The ring gear. C. The pinion gear. D. The spur gear. - Correct Ans-B. The ring gear. Two technicians are discussing a vehicle's torque converter. Technician A says if the torque converter's hub has any imperfections it should be replaced. Technician B says the depth of the torque converter into the case should be measured before removal. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-B. Technician B Technician A says the MAP sensor is for the engine and has no affect on transmission shift control. Technician B says the MAF sensor provides information about engine load to the TCM (transmission control module) and is important for TCM shift control. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans- Technician A says the MAP sensor is for the engine and has no affect on transmission shift control. Technician B says the MAF sensor provides information about engine load to the TCM (transmission control module) and is important for TCM shift control. Who is correct? A. Technician A B. Technician B C. Both A and B D. Neither A or B - Correct Ans-B. Technician B A vibration occurs while driving a vehicle with an automatic transmission at normal speeds. This vibration does not occur during a stall test. Which of the following is causing this vibration.