Question about 1993 Buick Regal

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Where is the vacuum modulator located on the 1993 Buick Regal

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1 Answer

If it has one

You open the hood & look on top of the
transaxle-- just to the right, of center, of the hood
opening

It will be on top & to the left of the transaxle end cover
& have a tube & small short hose going to it.

Under the hood or on the radiator cross support, should
be a vacuum diagram as well

Posted on Dec 02, 2014

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1 Answer

How do I find actuator to see if vacuum line is off to see if that's why my 1999 Buick Regal all the sudden is shifting hard


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I don't list a vac modulator for the transmission for your car.
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Remove the vacuum line at the modulator. Remove the bolt and the modulator assembly retainer. Remove the modulator assembly. Reverse order to install.

NOTE: if the modulator valve comes out of the bore when removing the modulator vacuum assembly, note the orientation of the valve and reinstall it in the bore before installing the new vacuum modulator assembly. (see picture)


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