Question about 1993 Buick Century

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1993 buick century 3.3 transmission modulator help

1993 buick century 3.3 i am looking for a decent picture or diagram of where the transmission modulator is exactly located at any ideas where to look

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  • 3 more comments 
  • Michael Thomas
    Michael Thomas Jul 21, 2010

    hey any idea what side say i am standing in front of the car looking at the engine and would there be a brace that may be covering it up

  • Michael Thomas
    Michael Thomas Jul 21, 2010

    thanks for the info i have has 3 people tell me it is under the car on side and from what you have told me i have found somthing that may look kind of like it but it is nothing like what the auto parts store shows for this vehnical this one is about 2 1/2 inches round with a flat end and it has a tube running out of the side that goes to the metal tube that goes up to the intake right side that is also part of the brake booster on the other side of this block that it is connected to

  • Michael Thomas
    Michael Thomas Jul 21, 2010

    ok i have found somthing that looks like it but it is flat on the end and the side of it has a tube that comes out of it where a metal tub the intake manifold towards the radiator it connects to a block that also has the hose for the break booster hopefully this is it how would one go about checking this to see if it works or not
    best regards michael

  • Michael Thomas
    Michael Thomas Jul 21, 2010

    hello again also do they come out pretty easy this vehical sat for 9 months before i obtained it

  • Anonymous Mar 29, 2014

    Why is my 1993 Buick Century is accelerating itself?

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  • Buick Master
  • 81,400 Answers

It is located on the side of the transmission case, it has a vacuum hose going to it, make sure that hose is good and has vacuum from the engine going to the modulator, here is a picture of the modulator so u can ID it.

1993 buick  century  3.3   transmission modulator  - 0258f00.jpg

Posted on Jul 21, 2010

Testimonial: "thanks for all of your help hopefully this it it seems wierd the photo you gave me not really the same as what i have found but it is close "

  • 1 more comment 
  • Marvin
    Marvin Jul 21, 2010

    You need to be under the car to see this.

  • Marvin
    Marvin Jul 21, 2010

    I know it is there, i have replace them on this very same car

  • Marvin
    Marvin Jul 21, 2010

    they can be a bear to pull free, the rubber o ring seal sticks to the aluminum

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  • Master
  • 3,092 Answers

Sorry don't have a diagram, but maybe this will help. Vacuum Modulator is on the side of your transmission, look for a metal vacuum line, that come's from the top of your engine down to the modulator, just follow that vacuum line.

Posted on Jul 21, 2010

  • Alexander Mimun
    Alexander Mimun Jul 21, 2010

    Under the hood, on the front side of transmission (radiator side)

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