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Thread: tranny leak

  1. #1
    Junior Member APPRENTICE
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    Feb 2009
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    tranny leak

    My th350 is leaking tranny fluid from a hole infront of the lines for the tranny cooler. the holeis on the passenger side and is untapped and ive haad the tranny running before i just put a trans pak from b&m in it. i'm thinking of plugging the hole but not sure if its anything important. wondering if anyone has any ideas

  2. #2
    Senior Member SENIOR BUILDER
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    Nov 2007
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    Tukwila, WA
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    Are you talking about the hole for the vent?

  3. #3
    Junior Member APPRENTICE
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    It could be i was going to just go ahead and plug and see what happens i started the motors to try to draw some of the fluid threw the tranny to see if i can add fluid now going to try later today hopefully works

  4. #4
    Senior Member SENIOR BUILDER
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    If it is the vent DO NOT PLUG

  5. #5
    Senior Member RACING JUNKIE
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    Niagara Falls, NY
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    the only vent i recall on the th350 was up on top behind the bell about half way back :wink: you sure its not the oring on the dip stick tube or the tranny kick down cable? does it leak when it sits or just when its running?
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  6. #6
    Senior Member SENIOR BUILDER
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    You are correct I was thinking powerglide. The vent for a 350 is on the drivers side at the base of the bell housing. Is there a kick down cable on this transmission, that would be located just below the fittings for the cooler lines?

  7. #7
    Junior Member APPRENTICE
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    yea it only leaks when i was just plain adding fluid i started it for 30 seconds to suck fluid threw the internals so im going to try again to fill it tomorow


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