Exam 10: Hydraulically Controlled Transmission

The device that varies incoming line pressure using centrifugal force is known as:

Technician A says that when governor pressure on one side of a shift valve overcomes spring pressure and throttle pressure on the other side, an upshift occurs. Technician B says when reverse boost pressure on one side of the reverse valve overcomes governor pressure on the other side, shift into reverse occurs. Who is correct?

Technician A says that modifying governor weights will alter transmission shifting. Technician B says that excessive modification of the governor weights may cause the transmission to not shift. Who is correct?

Which of the following has multiple lands designed to block or allow line pressure to pass to a band or clutch in order to apply the gear?

Technician A says that modifying governor weights will alter transmission shifting. Technician B says that excessive modification of the governor weights may cause the transmission to not shift. Who is correct?

When the transmission is in park, line pressure sent to the vacuum modulator is sent to the __________ when the throttle is closed and the vehicle is under no load.

Which of the following describes the hydraulic pressure produce by the modulator valve at high engine vacuum?

Technician A says that a malfunctioning governor can cause a shifting problem between first and second gear. Technician B says that a broken shift valve spring can cause a shifting problem. Who is correct?

If a vehicle is coasting in third gear, governor pressure ________ as the vehicle speed drops, causing the 2-3 shift valve to move back to the downshift position.

Which of the following are symptoms of a leaking vacuum modulator?

Technician A states that with the automatic valve in the park position, line pressure is not able to flow past the valve to any other components of the transmission. Technician B states that the pump sends fluid out under pressure to only the pressure regulator valve. Who is correct?

Technician A says that when a transmission is in second gear, governor pressure increases causing fluid to stop flowing to the second gear clutch and into the third gear clutch. Technician B says that when a transmission is in third gear, and governor pressure decreases, the transmission will downshift into second gear. Who is correct?

Under light load, a vacuum modulator gets what type of signal from the engine?

Under light load, a vacuum modulator gets what type of signal from the engine?

When does the kickdown valve force downshifts?

If vehicle speed decreases, governor pressure is reduced, resulting in the shift valve moving back to the downshift position.

Which of the following typically may need to be replaced during the servicing of a governor assembly?

Which of the following describes the hydraulic pressure produce by the modulator valve at low engine vacuum?

Line pressure is always working with spring pressure against governor pressure.

Two technicians are discussing automatic transmissions. Technician A says as engine vacuum increases, the vacuum moves the modulator valve to expose the exhaust port and reduces the amount of modulated pressure. Technician B says when there is no vacuum to the vacuum modulator valve, a spring moves the valve to increase modulator pressure. Who is correct?