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auto.howstuffworks.com/automatic-transmission13.htm

The further the gas pedal is pressed, the more pressure is put on the throttle valve. Other cars use a vacuum modulator to apply pressure to the throttle valve.

www.autopartswarehouse.com/automatic_transmission_modulator_valve~pop.html

To perform its function, the modulator needs the Automatic Transmission Modulator Valve to be in excellent working condition. Without the valve, the modulator ...

www.carsdirect.com/car-repair/how-to-install-a-transmission-valve

The transmission valve, or transmission modulator valve, controls the point at which gears are shifted. The modulator valve works together with the governor or  ...

www.reference.com/vehicles/function-transmission-modulator-valve-1f7611447d4e238f

The function of a transmission modulator valve is to regulate the timing of gears shifting. It works alongside the throttle, which indicates when the vehicle hits a ...

www.reference.com/vehicles/vacuum-modulator-valve-f7c2c59aa9d756b2

A: The function of a transmission modulator valve is to regulate the timing of gears shifting. It works alongside the throttle, which indicates when the vehic.

www.autozone.com/repairinfo/common/repairInfoMain.jsp?leftNavPage=productsHowTo&targetPage=productInformation&partCode=0996b43f80a01320

The transmission modulator determines when the transmission should shift. ... In the absence of the modulator valve (such as a chrysler torque-flite), the ...

www.freeasestudyguides.com/transmission-pressure-control.html

Some transmissions use a vacuum modulator or throttle linkage to control the throttle valve. Late model vehicles ... Transmission shift valve function illustrated.

www.ehow.com/how_7922897_modulator-valve-bad.html

Vacuum-operated modulator valves are installed in automobile automatic transmissions for the purpose of controlling shift patterns. The modulator is connected ...

www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-egr-vacuum-modulator

Jan 7, 2016 ... The EGR vacuum modulator is a component found on some EGR systems. ... They serve an important purpose in the overall functionality of the EGR ... The vacuum hose to the valve cover is not to be under engine vacuum but ...

www.carparts.com/transmission.htm

The Governor and the Modulator or Throttle Cable that monitor speed and throttle .... Each of the many valves in the valve body has a specific purpose and is ...