Transmission Fluid
What Color Is Automatic Transmission Fluid
Generally Red , but can sometimes be Blue
force is expressed in what units?
Either Lbs or Newton
The parts of a torque converter include ________.
Turbine, impeller, and stator
n electrical conductor is an element with ________ electrons in its outer orbit.
Less than 4
How is a variable ratio achieved in a CVT?
Use a steel belt with two variable-width pulleys
Most vehicle manufacturers recommend what type of ATF to be used during service or replacement?
The ATF recommended for the specific transmission/transaxle
Fluid pressure is measured in what unit?
Pounds per square inch (PSI)
When the impeller and turbine are rotating at about the same speed, this is called ________.
Coupling
Like charges ________.
Repel
What is the difference between a push belt and a pull chain?
A push-belt is made up of about 400 wedge-shaped segments
A pull-chain is made up of links and link pins
A pull chain looks similar to a silent chain
Correct Answer All of these
The two types of automatic transmission filters are ________ and ________.
Surface; depth
If 100 lbs. of force is applied to 1 sq. in. of area, how much fluid pressure is created?
100 PSI
The torque converter clutch circuit is controlled by the ________.
Command from the PCM/TCM
If an insulated wire rubbed through a part of the insulation and the wire conductor touched the steel body of a vehicle, the type of failure would be called ________.
A short to ground
Mainline pressure on a CVT can exceed ________.
900 PSI (6,200 kPa)
Why is an ATF cooler used in an automatic transmission/transaxle?
Excess temperatures cause the fluid to break down
Hot ATF can form gum or varnish
Excess heat significantly shortens the life of ATF
Correct Answer All of these
Fluid under pressure can be used to transmit motion and force because ________.
Fluids cannot be compressed
Fluid conforms to the shape of its container
Fluids under pressure will apply pressure equally in all directions
Answer All of these
A torque converter can multiply engine torque at the stall speed by about ________.
Double
When testing a relay using an ohmmeter, which two terminals should be touched to measure the coil resistance?
86 and 85
The recommended fluid to use in a CVT is usually ________.
Specific CVT fluid
Normal automatic transmission fluid temperature is ________.
Between 170°F and 180°F (77°C and 82°C)
Technician A says that fluid pressure is measured in kilopascals (kPa) or pounds per square inch. Technician B says that the area of a piston is used in calculating force. Which technician is correct?
Both technicians
Technician A says that the flexplate connects the torque converter to the crankshaft. Technician B says that the torque converter is considered part of the transmission. Which technician is correct?
Both technicians
Technician A says that module communications networks are used to reduce the number of wires in a vehicle. Technician B says that a communications network is used to share data from sensors, which can be used by many different modules. Which technician is correct?
Both technicians
The drive pulley diameter in a CVT is controlled by a ________.
Stepper motor