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Thread: Transmission Question
          
   
   

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  1. #1
    gemcleod is offline CHR Member Visit my Photo Gallery
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    Question Transmission Question

     



    I was having trouble with my auto transmission because it wouldn't change into 3rd gear, and was running rough. I discovered that a small metal tube spanning from the engine bloc to the transmission was disconnected. When I re-connected it, the car ran fine. Does anyone know what this tube could be?

  2. #2
    Oldf100fordman's Avatar
    Oldf100fordman is offline CHR Member Visit my Photo Gallery
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    yeap, that's your line to the vacuum modulator valve on the transmission. So with it off the trans won't go into 3rd gear and the carb is seeing a vacuum leak (thus the rough running).
    Duane S
    ____________________________________
    On a quiet night you can hear a Chevy rust

  3. #3
    lt1s10's Avatar
    lt1s10 is offline CHR Member Visit my Photo Gallery
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    Re: Transmission Question

     



    Originally posted by gemcleod
    I was having trouble with my auto transmission because it wouldn't change into 3rd gear, and was running rough. I discovered that a small metal tube spanning from the engine bloc to the transmission was disconnected. When I re-connected it, the car ran fine. Does anyone know what this tube could be?

    its the vac. line going from the motor to your modulator valve on the trans. you had a vac. leak making the motor rum rough and your trans couldn't shift because you modulator valve wasn't working.
    Mike
    check my home page out!!!
    http://hometown.aol.com/kanhandco2/index.html




  4. #4
    lt1s10's Avatar
    lt1s10 is offline CHR Member Visit my Photo Gallery
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    Originally posted by Oldf100fordman
    yeap, that's your line to the vacuum modulator valve on the transmission. So with it off the trans won't go into 3rd gear and the carb is seeing a vacuum leak (thus the rough running).
    you type to fast for me Oldf100fordman.
    Mike
    check my home page out!!!
    http://hometown.aol.com/kanhandco2/index.html




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