A2 Automatic Transmission/Transaxle
When testing computer-controlled system, a digital multimeter should be used with an input impedance of at least...?
10 mega-ohms
When testing a Torque Converter Clutch hydraulic circuit, a hydraulic pressure gauge is observed while applying the accelerator with the transmission in drive range, until the 2-3 up shift occurs and the indicated speed is approx. 50mph. If the TCC control valve is operating, how much pressure drop should be seen on the gauge? A. 5-10psi B. 10-15psi C. 15-20psi D. 20-25psi
A. 5-10psi
All of the following methods can be used to remove old bushings from a transmission case EXCEPT: A. Cut out with a torch B. Driven out with a suitable driver C. Cut and pulled out D. Pulled with a slide hammer and special adapter
A. Cut out with a torch
All of the following clutch components are used by manufactures to adjust clutch pack clearance EXCEPT: A. Drum B. Steel plate C. Pressure plate D. Snap ring
A. Drum
The MIL was illuminated on the dash of a 2008 Ford Ranger. A scan tool was connected to the DLC and the following DTCs were retrieved: -P0122-TP Sensor -P0731-Shift Solenoid A, no first gear -P0750-Shift Solenoid A, solenoid circuit failure -P0714-Shift Solenoid A, solenoid mechanical failure Which DTC should be checked first? A. P0122 B. P0731 C. P0750 D. P1714
A. P0122
All of the following are methods of removing the oil pump from the transmission case EXCEPT: A. Pressing on the output shaft B. Slide hammer C. Puller D. Prying on the geartrain
A. Pressing on the output shaft
When pressure testing a transmission, line pressure is compared with the pressure in each of the clutch circuits. Which specification should be used to determine whether a sealing problem exists? A. If the difference between line pressure and a clutch circuit pressure is greater than 5 psi B. If the difference between line pressure and a clutch circuit pressure is greater than 10 psi C. If the difference between line pressure and a clutch circuit pressure is greater than 15 psi D. If the difference between line pressure and a clutch circuit pressure is greater than 20 psi
B. If the difference between line pressure and a clutch circuit pressure is greater than 10 psi
When conducting a road test, which two sets of the vehicle manufactures specifications should be referred to? A. Fluid pressure and shift speed B. Shift speed and clutch and band application C. Clutch and band application and fluid pressure D. Fluid pressure and fluid temperature
B. Shift speed and clutch and band application
Automatic transmissions use either vane or gear type oil pumps. All of the following apply to both pump designs EXCEPT: A. They both pump fluid as soon as the engine starts. B. They both provide a variable level of output volume. C. They can be mounted at the front of the transmission case. D. They can be driven by the torque converter hub.
B. They both provide a variable level of output volume.
A front wheel drive vehicle with an automatic transaxle has excessive vibration. Technician A says that the vibration could be caused by worn engine/transaxle mounts. Technician B says that the vibration could be caused by a misaligned engine/transaxle sub-frame. Who is right?
Both technicians
A vehicle with an automatic transmission has a whining noise that increases with engine speed. Technician A says that this could be caused by transmission oil pump. Technician B says that this could be caused by low fluid level. Who is right?
Both technicians
An engine coolant temperature sensor is being tested. Technician A says that a negative coefficient temperature sensor should be tested by checking the voltage drop across the sensor. Technician B says that the resistance should be checked on this type of sensor. Who is right?
Both technicians
Technician A says that a free-wheeling stator clutch will cause poor vehicle acceleration. Technician B says that a free-wheeling stator clutch will cause stall speed to be too low. Who is right?
Both technicians
Technician A says that the illustration above shows the correct way to measure the clearance of a multiple disc clutch assembly. Technician B says if clearance is incorrect it can be restored using a different thickness snap ring. Who is right?
Both technicians
A transmission was just replaced. Technician A says to flush the transmission cooler before connecting the cooler lines. Technician B says to clear the adaptive learning memory values with a scan tool before performing a road test. Who is right?
Both technicians are correct
After removing a transmission from a vehicle, inspections should be performed. Technician A says the rear main seal and engine block core plugs should be inspected for leakage. Technician B says the flex plate and transmission alignment dowel pins should be inspected for damage. Who is right?
Both technicians are correct
Technician A says that a malfunctioning Torque Convertor Clutch can cause decreased fuel economy. Technician B says that a malfunctioning TCC can cause decreased transmission fluid life. Who is right?
Both technicians are correct
Technician A says that transmission bearings must roll freely and smoothly or they can make noise and fail. Technician B says that transmission bearings and bushings should be lubricated with transmission fluid. Who is right?
Both technicians are correct
The Torque Converter Clutch on an electronically-controlled transmission is being discussed. Technician A says that the Powertrain Control Module uses inputs from the Vehicle Speed Sensor and Engine Coolant Temperature B says the PCM uses inputs from the Throttle position sensor and Brake On/Off switch to disengage the TCC. Who is right?
Both technicians are correct
The trans axle on a front wheel drive vehicle will not shift into 3rd gear. Technician A says that the problem could be corrosion at the Power train Control Module connector. Technician B says that the problem could be a broken wire in a shift solenoid circuit. Who is right?
Both technicians are correct
Two technicians are discussing differential oil deal replacement on an automatic trans-axle. Technician A says that a pry bar or slide hammer/ puller can be used on most vehicles to removed the half-shaft. Technician B says that the axle shaft should not be pulled on to remove the half-shaft. Who is right?
Both technicians are correct
A front wheel drive vehicle creeps in Neutral and shifts erratically. Technician A says that the cause could be worn or broken power-train mounts. Technician B says the cause could be a damaged or improperly positioned sub-frame. Who is right?
Both technicians are right
An electrical circuit is being tested using a digital multimeter. When measuring voltage in the circuit, Technician A says that the meter should be connected in parallel. When measuring amperage, Technician B says that the meter should be connected in series. Who is right?
Both technicians are right
Technician A says leaking intake manifold gaskets can cause delayed and harsh shifts. Technician B says worn valve guides can cause delayed and harsh shifts. Who is right?
Both technicians are right
Technician A says that an incorrectly adjusted manual shift linkage can cause the manual valve to leak pressure into the wrong hydraulic circuit. Technician B says that an incorrectly adjusted manual shift linkage can cause vehicle creep in neutral. Who is right?
Both technicians are right
Technician A says that if the fluid level is correct but the line pressure is low, a worn or damaged oil pump may be indicated. Technician B says that low pressures can be caused by a clogged filter, internal leaks or a faulty pressure regulator. Who is right?
Both technicians are right
Technician A says that the resistance of transmission actuator solenoids should be checked. Technician B says that their mechanical operation should also be checked. Who is right?
Both technicians are right
Technician A says that trans-axle final drive side bearing preload is typically measured with an inch pound torque wrench. Technician B says that all end-play must be removed when adjusting bearing preload. Who is right?
Both technicians are right
The Malfunction Indicator Light is illuminated on the dash of a vehicle with an electronically controlled trans axle. When a scan tool is connected to the Data Link Connector, it reveals that there is a Diagnostic Trouble Code that corresponds to a transmission control system circuit. Technician A says that the wiring in the circuit should be inspected before performing any tests. Technician B says that the battery voltage should be checked. Who is right?
Both technicians are right
A customer with a vehicle equipped with an electronically-controlled transmission has a complaint of harsh shift engagement. This could be caused by a malfunction in any of the following circuits EXCEPT: A. Throttle Position sensor circuit B. Transmission Range sensor circuit C. Brake on/off switch circuit D. Turbine shaft speed sensor circuit
C. Brake on/off switch circuit
What clearance is being checked on the transmission oil pump? A. Gear-to-pocket clearance B. Inner-to-outer gear tip clearance C. Gear-to-pump body side clearance D. Input shaft end-play
C. Gear-to-pump body side clearance
When disassembling a transmission, which of the following checks should be made before removing the transmission oil pump? A. Torque converter end-play B. Input shaft pre-load C. Input shaft end-play D. Input shaft runout
C. Input shaft end-play
A transmission cooler suspected of being plugged is being tested. A hose is connected between the cooler outlet and an open container and the vehicle is run at idle for 20 seconds and then turned off. How much fluid should be in the container if the cooler is not plugged? A. Cup B. Pint C. Quart D. Gallon
C. Quart
All of the following are true statements regarding transmission fluid and filter changes EXCEPT: A. If the transmission oil pan holes are distorted place the flange on a flat surface and tap down the raised area with a hammer. B. The filter should be installed using a new gasket or O-ring. C. The transmission fluid is drained by removing the drain plug. D. If the pan bolts use compressible conical washers, any bolts with the washers reversed must be replaced.
C. The transmission fluid is drained by removing the drain plug.
All of the following should be performed during a preliminary transmission inspection EXCEPT: A. Check transmission fluid level B. Visually check wiring and electrical connections C. Check clutches and servos with air pressure D. Check for fluid leaks
Check clutches and servos with air pressure
To achieve the output forces shown in the illustration above, how much applying force should be used? A. 5lbs B. 10lbs C. 15lbs D. 20lbs
D. 5 lbs
During disassembly and inspection of a Continuously Variable Trans-axle, scratches are found on the pulley sheaves and a thin feeler gauge like piece of steel is found near the pulleys. What could cause this? A. High primary pulley pressure B. High secondary pulley pressure C. Pressure switch malfunction D. Failed push belt ring pack
D. Failed push belt ring pack
All of the following could cause a transmission to overheat EXCEPT: A. Clogged oil cooler B. Faulty Torque Converter Clutch C. Seized converter stator D. Freewheeling converter stator
D. Freewheeling converter stator
The MIL was illuminated on the dash of a 2008 Ford Ranger. A scan tool was connected to the DLC and the following DTCs were retrieved: -P0122-TP Sensor -P0731-Shift Solenoid A, no first gear -P0750-Shift Solenoid A, solenoid circuit failure -P0714-Shift Solenoid A, solenoid mechanical failure Which DTC is manufacturer specific? A. P0122 B. P0731 C. P0750 D. P1714
D. P1714
All of the following are methods for detecting external transmission fluid leaks EXCEPT: A. External cleaning followed by visual inspection B. Aerosol talcum powder C. Black light and florescent dye D. Pressure test
D. Pressure test
All of the following are true statements regarding transmission seals EXCEPT: A. Open end metal sealing rings should have small gap between the ends to allow for expansion. . B. Locking end rings should be locked together after installation. C. Scarf cut Teflon sealing rings are installed so that the ends are square with each other. D. Solid Teflon sealing rings should be installed by hand.
D. Solid Teflon sealing rings should be installed by hand.
After assembling a multiple-disc clutch, a technician should do which of the following? A. Install it in the transmission B. Soak it in clean transmission fluid for at least 20 minutes prior to assembly C. Test it with hydraulic pressure D. Test it with air pressure
D. Test it with air pressure
A customer has a complaint of poor fuel economy. During inspection the transmission fluid is found to be brown and smells burned. These symptoms could be caused by a malfunction in any of the following circuits EXCEPT: A. Engine Coolant Temperature sensor circuit B. Vehicle Speed Sensor circuit C. Torque Converter Clutch solenoid circuit D. Transmission Range sensor circuit
D. Transmission Range sensor circuit
All of the following are true statements regarding valve body service EXCEPT: A.Check balls can be held in place with petroleum jelly during valve body installation. B. The location of valve body retaining bolts should be noted as they may be different sizes and lengths C. New valve body gaskets should be compared with the old ones to ensure the correct ones are installed D. Valve body bolts should be torqued to specification, gradually and evenly, beginning at the outer edge and working towards the center of the valve body in a spiral pattern
D. Valve body bolts should be torqued to specification, gradually and evenly, beginning at the outer edge and working towards the center of the valve body in a spiral pattern
All of the following clearances should be checked when servicing a gerotor-type transmission oil pump EXCEPT: A. Gear-to-pocket clearance B. Rotor-to-pump body side clearance C. Tip clearance D. Vane clearance
D. Vane clearance
Under which of the following scenarios will the Torque Converter Clutch activate? A. When Engine Coolant Temperature sensor resistance is high B. When ECT sensor signal voltage is high C. When the brake on/off switch circuit is complete D. When transmission fluid temperature sensor resistance is low
D. When transmission fluid temperature sensor resistance is low
When replacing the transmission extension housing bushing and seal, Which of the following should also be inspected? A. Output shaft bearing B. Extension housing gasket C. Driveshaft slip yoke D. Speedometer drive O-ring
Driveshaft slip yoke
All of the following sensors rovide input for transmission control to the powertrain control module EXCEPT: A.Intake Air temperature sensor B.Throttle position sensor C.Engine coolant temperature sensor D.Mass air flow sensor
Intake Air temperature sensor
Technician A says that, when testing transmission actuator solenoids, a normally closed solenoid should block air flow when energized. Technician B says that a normally open solenoid should allow air flow when energized. Who is right?
Neither are correct
Technician A says that a blackish oil film found in a transmission oil pan after removal is evidence that the transmission overheated. Technician B says that loose black material found in a transmission oil pan after removal is evidence of excessive wear or damage to gears, bearings and thrust washers. Who is right?
Neither of them are
Under which of the following conditions is the transmission range switch usually adjusted? A.Range selector in Park B.Range selector in reverse C.Range selector in neutral D.Range selector in drive
Range selector in neutral
A multiple dis clutch is being assembled. Technician A says that all clutch plates should slide freely in the drum. Technician B says that all plates must be clean and dry when assembled. Who is right?
Technician A
A torque converter is about to be installed in the transmission. Technician A says the torque converter should be installed with the input in a vertical position. Technician B says the torque convertor should be installed with the input shaft in the horizontal position. Who is right?
Technician A only
A transmission is experiencing a harsh 2-3 upshift with no DTCs. Technician A says that an accumulator with a stuck piston could cause this problem. Technician B says that a scratched clutch piston bore could cause this. Who is right?
Technician A only
A transmission was just replaced several days ago and now the vehicle is back with a check engine light and harsh shifting. Technician A says that a wiring harness that did not get properly routed during transmission installation could cause this. Technician B says that fuel lines that did not get bolted back into their brackets during transmission installation could cause this. Who is right?
Technician A only
Technician A says that converter end-play is checked to determine the combined lateral movement of the turbine and stator. Technician B says that converter end-play is checked with a feeler gauge. Who is right?
Technician A only
Technician A says that the Engine Coolant Temperature sensor is primarily used to prevent Torque Converter Clutch lockup while the engine is cold. Technician B says that, when testing the sensor, the resistance should increase as the temperature increases. Who is right?
Technician A only
Technician A says that the first step in transmission diagnosis is listening to the customers complaint. Technician B says that diagnosis should be with a road test. Who is right?
Technician A only
Technician A says that trans-axle differential side and pinion gears should be replaced if they are scuffed or have broken teeth. Technician B says that when the differential is assembled, side gear end-play should be checked with a feeler gauge and shimmed accordingly. Who is right?
Technician A only
Technician A says the fluid level on some automatic transmissions is checked by removing a level control plug. Technician B says the fluid level should be checked on these transmissions with the engine off. Who is right?
Technician A only
The MAP sensor voltage on a vehicle is measured with the engine running at idle and found to be almost 5 volts. Technician A says that this voltage is too high for idle speed. Technician B says that this voltage will cause the transmission to shift too early. Who is right?
Technician A only
The malfunction indicator light is illuminated on a vehicle presented for service and the customer complains of transmission problems. A scan tool reveals that there are both engine and transmission related diagnostic trouble codes. Technician A says that the engine related DTCs should be serviced first. Technician B says that engine related DTCs have no effect on transmission performance. Who is right?
Technician A only
When inspecting a planetary gear set, technician A says that the pinion gear side clearance should be checked with a feeler gauge. Technician B says that if any part of the planetary gear set fails inspection, the entire gear set must be replaced. Who is right?
Technician A only
When inspecting a transmission band, Technician A says that the corresponding drum should also be inspected and replaced if it is very rough or scored. Technician B says that when a band is replaced, the drum should be polished for proper band operation. Who is right?
Technician A only
When retrieving stored codes from an electronic transmission control system, a hard fault is found regarding the Throttle Position sensor circuit. Technician A says that the TP sensor circuit should be tested. Technician B says that since it is a hard fault, the TP sensor must be replaced. Who is right?
Technician A only
A voltage generating vehicle speed sensor is being tested. Technician A says that the transmission shaft should be rotated and the DC voltage output checked. Technician B says that the sensor resistance should be checked. Who is right?
Technician B
A technician is air checking a clutch assembly and notices a slight hissing sound from the clutch piston area. Technician A says that this is normal for pistons in housings that rotate. Technician B says that this is normal for pistons in housings that do not rotate. Who is right?
Technician B only
A vehicle with an automatic transmission is experiencing harsh upshifts and downshifts with no DTCs. During the line pressure test, the line pressure, as commanded by a scan tool, does not match the pressures shows on a pressure gauge. Technician A says the pressure control solenoid electrical circuits should be inspected. Technician B says the pressure control electrical circuits are not the problem. Who is right?
Technician B only
Technician A says that all power should be removed from a circuit beofre testing the circuit with an ammeter. Technician B says that all power should be removed from a circuit before testing the circuit with an ohmmeter. Who is right?
Technician B only
Technician A says that pink colored transmission fluid is evidence of overfilling and the pink color is caused by aeration of the fluid. Technician B says that pink colored transmission fluid is caused by coolant mixing with the transmission fluid due to a leak in the transmission cooler. Who is right?
Technician B only
Technician A says that transmission fluid that is not bright red has broken down and must be changed. Technician B says that it is oxidation at high temperatures that cause transmission fluid break down who is right?
Technician B only
Technician A says that while assembling an automatic transmission, grease or petroleum jelly should be used to hold thrust washers in position. Technician B says that all bushings and shafts should be lubricated with transmission assembly lube or transmission fluid. Who is right?
Technician B only
Technician A says that, when checking for voltage in a sensor circuit of an electronic transmission control system, a test light should be used. Technician B says that a known good ground should be touched before replacing the sensor. Who is right?
Technician B only
The fluid level is checked on a cold automatic trans-axle and is found to be above the Full Hot mark. Technician A says that the unit is overfilled, since the fluid will expand as the temperature increases, making the fluid level rise. Technician B says the fluid level may fall as the unit warms up, and the only way to get an accurate reading is to check the fluid when its temperature is within the range specified by the manufacturer. Who is right?
Technician B only
When performing a transmission stall test, Technician A says that the accelerator should be help to the floor for no longer than 10 seconds. Technician B says that the transmission should be placed in Neutral and the engine run at fast idle for 30-60 seconds, in between each test, to cool the torque convertor. Who is right?
Technician B only
