Exam 21: Continuously Variable Transmissions

Which of the following transmissions typically has no fixed gear ratios?

Which of these is not used in a continuously variable transmission (CVT)?

Technician A says most manufacturers use a multi-disc clutch pack and a set of planetary gears to allow the continuously variable transmission (CVT) to operate in reverse. Technician B says Ford Motor Company uses these planetary gear sets to create a two-speed CVT. Who is correct?

The variator assembly should be replaced in all of the following conditions except:

Technician A says the longitudinal steel bands in a variable pulley diameter style continuously variable transmission (CVT) are used to hold the belt together and keep the steel plates lined up. Technician B says these bands hold the plates apart so there is a large gap maintained between each plate. Who is correct?

A scan tool may not display the proper pressures during a CVT transmission diagnosis.

Technician A says some manufacturers have programmed into the power train control module (PCM) regular shift points for their continuously variable transmission (CVT), at which the pulley sheaves will move to predetermined positions to create the feel of separate conventional shifts. Technician B says some manufacturers allow the driver to manually shift through these predetermined pulley diameters while driving the vehicle. Who is correct?

A CVT drive belt is being inspected when the transmission is being disassembled. Technician A says that a worn belt can be the cause of a slipping transmission. Technician B says that if a belt shows signs of wear, it doesn't necessarily need to be replaced. Who is correct?

Technician A says that Variable Diameter Pulley (VDP) Continuously Variable Transmissions (CVT) will often have a planetary gear set to produce reverse. Technician B says that many CVTs in vehicles use a rubber drive belt between two pulleys to transfer power. Who is correct?

Technician A says that the transmission in a Toyota hybrid has a separate gear to provide reverse. Technician B says that Toyota hybrids use a VDP CVT transmission. Who is correct?

Technician A says most manufacturers recommend repairing internal components of their continuously variable transmissions (CVTs). Technician B says specialty tools are required to compress the output pulley and reinstall the belt on most CVTs. Who is correct?

Most manufacturers of hybrid vehicles use a limited number of multi-disc clutch packs and a set of planetary gears to allow the transmission to operate in ________.

Which of the following is most likely an overdrive gear ratio for a variable-diameter pulley (VDP) system?

Which of the following is not a type of continuously variable transmissions (CVT) used in production vehicles?

Technician A says that Variable Diameter Pulley (VDP) Continuously Variable Transmissions (CVT) will often have a planetary gear set to produce reverse. Technician B says that many CVT's in vehicles use a rubber drive belt between two pulleys to transfer power. Who is correct?

Technician A says that Variable Diameter Pulley (VDP) Continuously Variable Transmissions (CVT) are commonly rebuilt. Technician B says that VDP CVT's require more frequent fluid changes than a conventional automatic transmission. Who is correct?

Which of the following allow the transmission to operate in reverse?

In the Toroidal Continuously Variable Transmission (CVT) design, power is transferred from the input disc to the output disc through a set of variable-angle _______.

The belt can be replaced using a(n):

Which of the following is most likely an overdrive gear ratio for a variable-diameter pulley (VDP) system?