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The Vacuum Modulator is located on the right side on the transmission just above the pan and below the two cooling lines. It should be brass colored with a 1/4" or 3/8" vacuum hose attached to it.
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How do you tell the difference between Chevy automatic transmissions?
Th350 has a modulator on the back. Th400 has modulator on side. 700R4 has no modulator.
How much vacuum pressure is at the modulator valve on a th400 at idle?
same as engine vacuum.
WHere do you hook up the vacuum lines from the modulator on a TH400 automatic transmission?
engine vacuum or direct into the intake.
Does a 1988 Chevy 1500 have a transmission vacuum modulator?
More Info, If You Do Not Find A Modulator, You Could Have a Different Trans. If You Have A Square Pan With 16 Bolts Then You Have A 4L60 or TH700( no modulator on these) If the pan is oval and 17 Bolts Has 4L80 ( no modulator on these) Hope This Helps You Should Have A TH400 Trans & It Does Have A Modulator.
How do you tell the difference between a TH350 and TH400 Trans?
A 350 has a vacuum modulator back at the tailshaft on the passenger side. Also the pan's shape is different.
How do you adjust the bands on a chevy th400?
they are not maintenance adjustable on the th400
How do you adjust the bands on a th400 transmission?
they are not maintenance adjustable on the th400
Where is the modulator valve located on a 1982 gm Malibu?
on the passenger side in the back of the tranny the vaccum line goes to it.
Will a th400 transmission bolt onto a gm 305 small block?
as long as it is a chevy bolt pattern th400
Is your th400 interchangable with a th700ra transmission?
no
What is a diode modulator?
A diode modulator is a type of AM modulator constructed using diodes. One type of diode modulator is the ring modulator shown in the image.
How is balanced modulator different from diode bridge modulator?
A diode bridge modulator is one kind of balanced modulator.
