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auto.howstuffworks.com/automatic-transmission13.htm

How Automatic Transmissions Work ... Other cars use a vacuum modulator to apply pressure to the throttle valve. The modulator senses the manifold pressure,  ...

www.carparts.com/transmission.htm

It does this through various gear combinations. ..... The Vacuum Modulator monitors engine vacuum by a rubber vacuum hose which is connected to the engine.

www.autopartswarehouse.com/transmission_vacuum_modulator~pop.html

DO NOT install a used transmission vacuum modulator in your vehicle. The condition of the material is unknown, and it may have an effect on the other car parts.

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. It controls the flow of the EGR system by using a vacuum operated ...

cartreatments.com/automatic-transmission-vacuum-modulator-functions

Mar 14, 2016 ... It does this in two different means. ... With the assistance of an automatic transmission vacuum modulator, it is very important to ... If working effectively, it helps in controlling the vehicle's transmission shifts by directing the ...

itstillruns.com/transmission-vacuum-modulator-valve-6948943.html

The transmission vacuum modulator valve determines how much load is on the ... If the modulator valve is not working properly, the transmission will not shift ...

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

Jan 27, 2012 ... If you do a lot of heavy hauling, you work your standard or automatic ... Reconnect the vacuum hose to the transmission modulator valve and ...

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

... that is sent to the exhaust gas recirculation valve. The vacuum modulator valve is located inside a vehicle's. ... How do you clean the EGR valve on an engine?

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 ... Detach the vacuum hose that runs from the valve to the intake manifold. The presence of ... How does a dual-clutch transmission work?

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

Some of these have been replaced or work together with electronic controls. ... Some transmissions use a vacuum modulator or throttle linkage to control the ...