What does a transmission modulator valve do?
The modulator valve is attached to the intake manifold with a vacuum line. It senses intake manifold vacuum and shifts the transmission accordingly: When you press down on the gas pedal, the throttle plate opens and the vacuum is reduced. The modulator valve will cause the transmission to downshift.
What does a C6 vacuum modulator do?
Ford, 1966-72 C4/C6 Adjustable Vacuum Modulator, Screw-in, White Stripe. The vacuum modulator is a vital component of automatic transmissions. It tells the transmission what kind of load is being put on it, allowing the transmission to react with the proper line pressures and shift points.
Where is the modulator valve on a Ford?
The vacuum modulator is on the passenger side of the truck on the rear of the transmission just forward of the tail shaft cover. Pull the hose off and lay it aside. When the hose is removed, look for transmission fluid in the hose.
How do you adjust a transmission modulator valve?
Remove the vacuum line from the end of the vacuum modulator. Use a small slotted screwdriver to turn the adjuster that is located inside of the vacuum fitting. Turn the adjuster clockwise for earlier shifts and counterclockwise for later shifts. Make small adjustments of 1/8 to 1/4 turn at a time.
Can you put transmission fluid in an engine?
Since transmission fluid essentially performs the same task as engine oil, it’s not the end of the world if you find it in your engine.
Can you use transmission oil instead of motor oil?
It is recommend to not use transmission fluid in place of motor oil in a vehicle. Transmission fluid has a lower viscosity than motor oil, and manufacturers recommend an oil change if transmission fluid is added to the oil.
Is it time to replace transmission fluid tube?
My daughter, bless her heart, accidentally put three quarts of engine oil in the transmission fluid tube, then drove the car home from work. Is it time to replace, or is there any chance of salvaging the car?
Where does engine oil go in a transmission?
If anything the engine is likely damaged goods, not the transmission. Also, don’t forget to show her where engine oil goes, and where transmission fluid goes, and what each liquid looks like, so that she doesn’t ever have this problem again. If you have to, tell her to look for both the OIL cap, and/or the 710 cap.