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It is right behind the right headlight under the battery box attached to the inner fender.

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Q: Where is the vacuum shift modulator on a 1989 Chevy blazer?
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What does a transmission modulator due on a 86 Chevy blazer?

Modulates pressure that controls shift points.


Were is the shift modulator located on a Chevy Celebrity v6?

On the 440T4 Automatic Overdrive transaxle the modulator is on the front of the case, A vacuum line leads to it from the intake manifold.


Does the transmission have a modulator valve?

as far as I understand , it does not have a modulator. e4od are electronic. no vacuum shift modulator


What is a vacuum modulator?

On some of the older vehicles the vacuum modulator controlled the shift points of the transmission by using the vacuum supplied from the engine.


Why does my Automatic will only shift manually?

Could be no vacuum to the modulator.


How do you adjust a vacuum modulator?

I assume your refering to the vacuum modulator which controls transmission shift points. Remove the vacuum hose from the modulator. Using a small screwdriver, turn the screw inside the modulator. It may take several tries to get it right.


Where is the front wheel modulator located on a 1995 S-10 Blazer?

Never heard of a "front wheel modulator" on a S-10 Blazer. If you mean hub, it is the wheel bearing assembly. If you meant 4x4 shift solenoid then depends if it is shift on the fly or not. The ABS has a modulator, but not sure what you mean.


What is the function of a modulator of car?

Assuming you mean the modulator on an automatic transmission... The modulator help to control the timing of the changing of gears in the tansmission. The modulator uses manifold vacuum to finetune the shift point, lower vacuum means higher load, throttle is open wider, shift point will be delayed.


Where is the vacuum line running to the transmission in a 1994 camaro Z28?

It's for a modulator valve. The later cars all shift by electronics and signals from the ECM. Yours however still uses a modulator valve and vacuum to assist in determining shift points.


Where is the transmission vacuum line on a 96 Chevy pick up with 4.3?

That transmission does not have a modulator valve that makes it shift it is all computor controlled. Therefore it don't have a vacuum line on it anywhere. it does have a small rubber line on it that is a VENT hose.


Which way do you turn the screw on modulator valve On a 350 turbo trans to make it shift quicker on low vacuum?

the modulator valve does not have a screw, however, the modulator located outside the modulator valve may or may not have one.


My 79 firebird wont shift by itself. i checked the fluid while ideling and chased down my vacuum hoses and that's not it either. maybe modulator valve?

I had this problem on a car once. If it won't shift by itself, but it does shift when you go through the gears manually, it's the vacuum modulator. Replace it and you'll be good to go.