tranny leak
04-08-2013, 11:17 PM
#1
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tranny leak
1990 f150 with e4od tranny, for some reason when the tranny is put in a high pressure situation it leaks from what looks like the front but I think its coming from the top. The situations I've noticed this happen in is highway driving 60plus mph for extended time or another time backing a boat up a hill it leaked out about a quart both times please let me know of any ideas on what to do to fix this. I was thinking modulator valve or release valve or something but I don't know much about transmissions. All help is appreciated.
04-10-2013, 12:28 PM
#3
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Trans isnt overfilled is it? Sounds like its coming from vent ontop of case, when fluid heats up. If level isnt over filled, would try a better tranny cooler.
04-11-2013, 12:21 PM
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It isn't overfilled, I guess it could be getting too hot I could buy a bigger tranny cooler. I just didn't know if there might be some pressure release vaccuum or something.