Automatic Transmissions
A Hybrid that can be recharged by connecting to the electric grid is called what?
A plug-in hybrid
Which is not a basic function of ATF?
Acts as a control fluid for hydraulic brake systems connected to the transmission
Which of the following is not a basic function of automatic transmission fluid?
Acts as a cooling fluid for the radiator system connected to the transmission
Engine Mounts can be tested using what procedure?
Brake torquing
A failed neutral safety shift can do what?
Prevent the vehicle from shifting into neutral
The function of the torque converter stator is what?
Redirect fluid from the pump back to the turbine
Which of these sensors tells the PCM the transmission temperature?
TFT (transmission fluid temperature sensor)
Tech A says that the torque converter and transmission change engine revolutions per minute into torque to move the vehicle. Tech B says the internal gear is located between the sun and planet gearset. Who is correct?
Tech A
Technician A says that water in the ATF will make it pink and foamy. Tech B says water in the ATF will cause a burned smell due to the lack of lubrication. Who is correct.
Technician A
Which of the following is the main purpose of the shift control system?
To select an appropriate gearset combination based on transmission revolutions per minute in relation to engine load
The forward and backward movement of an engine during acceleration and deceleration is called:
Torque wrap up
The shift solenoids have the following shift pattern on a 4-speed transmission: 1st:ON/ON, 2nd: Off/On, 3rd: off/off, 4th: en/off. What happens in the case of electrical failure?
Transmission defaults to 1st gear
Tech A says that the sun gear is the outermost gear. Tech B says the internal gear in a planetary gearset is also known as the pinion gear. Who is correct?
neither
Technician A says that a shop towel should be used to clean around the flange area before replacing an automatic transmission filter. Technician B says that a dimpled transmission fluid pan must be replaced. Who is correct?
neither
Technician A says that a CVT belt must be very pliable to allow the necessary movement between pulley halves. Technician B says that no oil can be allowed on CVT belts or they will slip. Who is correct?
Neither
Technician A says that the torque converter and transmission change engine revolutions per minute into torque to move the vehicle. Technician B says the torque converter's impeller is connected to the transmission input shaft. Who is correct?
Technician a
When performing a transmission fluid exchange with a machine, how can you tell when the process is complete?
The new and return fluid will be the same color
A CVT allows the engine to operate for which condition? Peak Power Peak Efficiency Both Neither
both
Technician A says that in a planetary gearset, the sun gear is always driven. Technician B says the Internal gear in a planetary gearset is also known as the ring gear. Who is correct?
tech b
How are Hybrid high-voltage cables identified?
they are orange
What is the function of the manual valve?
to direct hydraulic pressure to the different gears
Which torque converter component is connected to the transmission input shaft? Turbine Stator Pump Spring
turbine
What is the default gear of a transmission with this shift control pattern: 1st: on/off, 2nd: off/off, 3rd: off/on, 4th on/on?
2nd
How long must a technician wait, after removing a hybrid's service plug, before it is safe to work on the vehicle?
5 minutes
How many combinations are possible in a planetary gearset?
8
What is regenerative breaking?
A Hybrid system that converts a vehicle's kinetic energy into electric energy
CVTs operate by doing what?
Adjusting the width of their pulleys.
Which of these additional systems are not found on hybrids?
Auto speed reduction
All of these are used to hold Planetery Gear components EXCEPT: Bands Roller Clutches Belleville Springs Multi-disc Clutches
Belleville Springs
Tech A says the neutral safety switch (NSS) sends a signal to the PCM and allows engine cranking only when the transmission is in neutral or park. Tech B says that a transmission range (TR) switch sends a signal to the PCM to indicate the gear range the driver has selected. Who is correct?
Both
Which of these is not a factor in determining the fluid service interval for an automatic transmission?
Frequency of use
A Hybrid vehicle: Uses a fuel other than gasoline' Has more than one source of propulsion Always has two electric motors Runs on batteries
Has more than one source of propulsion
If a CVT belt is running near the center of the Input Pulley, and near the outside of the Output Pulley, what is the output status of the transmission?
It is a low gear ratio
Tech A says that overfilling the ATF can cause the transmission to slip. Tech B says ATF should have a burned smell and gritty feel. Who is correct?
Neither
When a torque converter is operating with the stator roller clutch locked, the fluid moves from the _______to the ______ and then to the _________.
Pump, turbine, pump
Which of the following is not available on Hybrids?
Pure electric drive
Before working on any Hybrid vehicle, the first two things a technician should so is ______ and _______.
Put on high-voltage gloves, remove the Service plug
If a shift selector is moved through the gear positions and no detents are felt, what is most likely the problem?
The manual valve linkage needs to be adjusted
What is the proper flow for an Auto Trans cooling system?
Transmission to the radiator, to the auxiliary cooler, and back to the transmission
What event causes a stator roller clutch to unlock?
When the pump and turbine speed are the same
When is a stator typically locked?
When the pump is spinning faster than the turbine speed
Brake torquing or Power Braking can be used to test what?
engine mounts
Directing hydraulic fluid pressure to all of the different gears is the function of what?
manual valve
Tech A says that if flakes of worn friction material smaller than a grain of sand are found in the transmission may be suffering an excessive loss of friction material that could lead to transmission failure. Tech B says that finding friction material in a pan can be a result of normal operation? Who is correct?
neither
Which of these should be used when installing pan gaskets?
petroleum jelly
If a ring gear is held and the sun gear drives, what is the result?
reduction
If a planet carrier is held and the sun gear drives, what is the result?
reverse
All of the following are common transmission fluid problems EXCEPT: Foamy Dark Color Burnt Smell Separation
separation
