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How to Detect and Replace a Faulty Transmission Valve - CarsDirect


Metal debris can also cause the O-rings to fail, causing a fluid leak in your transmission. ... If the transmission modulator valve is faulty, it will usually result in your ...

www.ask.com/youtube?q=What Does a Modulator Valve Look like&v=ram2Ni0aUPM
Feb 17, 2015 ... Transmission modulators act as a vacuum kickdown valve which is used by vacuum pressure inside the intake manifold, so that a kickdown ...

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. ... How does a dual-clutch transmission work? ... You May Also Like. Q: ...

Transmission Modulator - AutoZone


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

Does Your Automatic Transmission Really Need Replacing ...


Here are some diagnostic tips and some things you can do to improve performance ... He had just come from a shop that told him his transmission was shot and he looked like he wanted to cry. .... Transmission Modulator Valve Rubber Cap.

Ford Questions - Vacuum modulator c4 tranny this one does not ...


Jul 6, 2013 ... The C4 automatic has a vacuum modulator that senses change in the ... Fabi: does yours look like this? and are you wanting to change it out? .... I have a 1977 Ford Thunderbird and im looking at the transmission shift valve .

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


Spotting problems before they get worse shows what to look for to prevent a minor ... The Governor and the Modulator or Throttle Cable that monitor speed and throttle ... This effect is just like that of a bicycle, where the pedals will turn the wheel when .... The valve body is the control center of the automatic transmission.

C6 Modulator - The FORDification.com Forums


It seems a little better but it still doesn't seem to be shifting the same as before. It is like the engine is hauling ass but the truck isn't. ... The modulator positions a valve so the fluid at high vacuum does not jerk the tranny into ...

MB Automatic Transmission diagnosis and adjustment - 928 Tech Tips


If you do not have the pressure gauge to test this, and particularly if you or a ... But first, get the updated modulator valve for most early-mid 80s and beyond MBs . .... So, I decided to "crimp" the bolted area (which actually looks like a brass tube ).

How do I tune/adjust my shift points? [Archive] - V8Buick.com


If I put it in drive and take off hard from a dead stop it shifts around 3000 RPM or so I would like it to shift closer to 4500 RPM . where do I start. do I need to adjust the modulator? governor? ... Look for the posts on the board, lots of good info. ... The valve body gets these inputs and comes up with shift points ...

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Automatic Transmission Modulator Valve | AutoPartsWarehouse


There's no need to look elsewhere to grab a new Automatic Transmission Modulator Valve. Auto Parts Warehouse can provide an excellent replacement for you ...

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


Vacuum-operated modulator valves are installed in automobile automatic ... You can troubleshoot these symptoms to determine if your car's modulator is faulty. ... the modulator valve ruptures, transmission fluid is drawn up to the engine like liquid through ... Be sure to bring this up if you have a mechanic look over your car.

Automatic Transmissions: Valves and Modulators - How Stuff Works


Other cars use a vacuum modulator to apply pressure to the throttle valve. ... The shift valve will delay a shift if the car is accelerating quickly. If the car ...