The throttle valve or vacuum modulator adds force to the spring side of the 1-2 shift valve to act against governor pressure.

Name: The throttle valve or vacuum modulator adds force to the spring side of the 1-2 shift valve to act against governor pressure.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The throttle valve or vacuum modulator is designed to adjust the hydraulic pressure in the transmission, which influences the shift timing by adding force to the spring side of the shift valve, counteracting the governor pressure.

The Throttle Valve or Vacuum Modulator Adds Force to the Spring