Transmission pan leaking

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  1. #1
    3rd Gear
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    Sep 2015
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    Raleigh, NC
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    Transmission pan leaking

    2004 V6 Auto with 171k on her.

    Just noticed a leak at what appears to be the trans pan gasket. Is this common with this mileage or should I be looking at another place that the leak is coming from?

    It appears that it isn't leaking down from above the pan but the majority of the wetness is near the large (maybe 1" in diameter) round plug from the harness that plugs into the trans) The wetness is in the front of the pan/ towards the front of the car and making its way towards the back.

    The metal ID tag on the trans is as follows:

    ZF GETRIEBE GMBH
    SAARBRCCKEN

    -NR
    -NO 1200645

    NR 1060 030088
    5HP-19

    Any help is much appreciated

    Thank you
    EZZ

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  3. #2
    3rd Gear
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    This leak it totally new as of a month or 2 ago so it's significant to me. I maybe get on the gas semi hard once a month. Merging into traffic or at a light but 1/2 heavy foot while driving. (if that makes sense) I don't know if the fluid or filter has ever been serviced before I got it. Shifts pretty smooth. There is a very slight hesitation between 1st and 2nd and tip works as it should.

  4. #3
    Overdrive
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    Feb 2007
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    Lehigh County, Pa.
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    11,798
    The pan on my 2000 started leaking at about 189K. The VW dealer said the transmission wasn't serviceable and recommended I replace the whole thing. A new gasket (and new fluid, filter, plugs, a few fasteners, etc...) and it was fine for at least the next 75,000 miles.

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  6. #4
    4th Gear
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    Sep 2002
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    Yorba Linda CA USA
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    4,213
    There are several places where ATF can leak, and except for a simple drain or fill plug leak, the pan is the preferred one because fixing it is relatively easy. Leaks can happen at the TC seal, which requires transaxle removal, then where wiring harness emerges from the transmission case, and cooler lines. Best bet is to clean everything, then watch for the first sign of wetness to locate the source.

  7. #5
    3rd Gear
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    Hopefully I can get everything cleaned tomorrow after work and will let you know when I see where it's actually coming from.

    Thank you

  8. #6
    3rd Gear
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    I cleaned it all up and after an hr or 2 I climbed back under to have a look. There was a (very faint) but a tiny bit of fresh fluid on the clip that seems to hold the round electrical plug to the housing. I don't know if this was residual fluid that seeped out of a crevice after spraying the area with carb cleaner but it doesn't appear it is coming from the pan gasket.

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