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Where is the modulator valve on 1992 grand am auto trans is it vacuum or electric?


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2005-11-18 04:10:40
2005-11-18 04:10:40

autozone.com has online manuals that give step by step how to autozone.com has online manuals that give step by step how to

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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.

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If your transmission has a modulator it is on the side of the trans and it has a nipple on it for the vaccum line. I you. Mark

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There is a modulator on some transmissions. If yours has a vacuum line going to the trans, it connects to the modulator and you simply remove the bolt holding it and pull it out.

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When you get ready to run the vacuum line from the turbo 400 trans modulator to an Edlebrock Performer 800 CFM carb, attach the vacuum line for the transmission vacuum modulator to the bottom constant vacuum source or the plug that is below the throttle plate. After that, install the vacuum advance to the port that is signaled or right above the throttle plate. Once that is completed, install the large vacuum line to the back of the carb for the power brake.

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


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