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Feb 17, 2015 ... Transmission modulators act as a vacuum kickdown valve which is used by ... Transmission modulator replacement (early GM 4T60-E models) .... Part #1 Chevy 350 Transmission Rebuild at Wayne Gorby Transmission in ...

What is the function of a transmission modulator valve? | Reference ...


The function of a transmission modulator valve is to regulate the timing of gears shifting. ... Chevy Transmission Modulator · Automatic Transmission Modulator ...

Chevy automatic transmission workings (Bob Hale) - Yarchive


First, I need to ask a qualifying question: has the transmission been modified (e.g. , ... This modulator pressure is also used to decide at what road speed to shift.

Automatic Transmission Modulator Valve | AutoPartsWarehouse


Compare costs, read reviews, and get the best deals on aftermarket or replacement Automatic Transmission Modulator Valve. Free Shipping on all qualified ...

Automatic Transmissions: Valves and Modulators - How Stuff Works


Find out how an automatic transmission works and how it differs from a manual. ... Other cars use a vacuum modulator to apply pressure to the throttle valve.

Diagnosing GM Transmissions - LSX Magazine


Aug 1, 2012 ... Everybody has their own idea of the perfect transmission, and in many ... including; a vacuum line leak, a blown modulator, or the bolts on the hold-down plate .... Initially only available in the Corvette, Blazer/Jimmy, and Chevy ...

How to Know When Your Modulator Valve Is Bad? | eHow


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

1988 Chevy k2500 transmission won't shift...sometimes - Chevrolet ...


It has a Jasper transmission in it, it has a 4x4 but needs the 4x4 ... 1988-1988 Chevrolet C1500 Automatic Transmission Modulator Valve ...

AT Modulator | O'Reilly Auto Parts

www.oreillyauto.com/site/c/search/AT Modulator/03204/C0023.oap

See categories listed under Replacement Parts > Filters & PCV Valves > AT Modulator. Free shipping on most orders $75 or more.

Fram® FM2321 - Automatic Transmission Modulator Valve


Automatic Transmission Modulator Valve - Part Number FM2321 by FRAM. ... 1990 Chevy R1500 Suburban / R2500 Suburban / V1500 Suburban / V2500 ...

More Info

How to Detect and Replace a Faulty Transmission Valve - CarsDirect


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

Transmission Modulator - (A/T) for Cars, Trucks & SUVs - AutoZone


Shop for Transmission Modulator - (A/T) products with confidence at AutoZone. com. Parts are just part of what we do.

Automatic Transmissions A Short Course on How They Work ...


Automatic transmissions contain mechanical systems, hydraulic systems, electrical ... The Governor and the Modulator or Throttle Cable that monitor speed and ...