Bizarre tranny leak

[Ford-O-holic]

Here`s the prodlem, when the ole exploder is driven for 20 kms or so then tranny barf`s out tranny fluid and I mean alot about 2 litres so (only happens when its hot out) when it cools down I can add more and it will be fine and on short trip there is no problem. It is not leaking from the vent tube but from where the tranny mounts to the engine, this is the only time it leaks no little drips or anything. Thoughts and ideas are greatly appreciated on this one people.

 

[FMExplorer]

There are a total of 3 seals at the block/bellhousing juncture. The seal you blew is a pressure seal at the bellhousing. When the fluid heats up it gets thinner and under more pressure - hence the leak. What caused hte leak? Probably 1) Torque converter is bad, 2) fluid pump is bad or 3) pump bushing is bad. Don't drive it cuz you will do damage. Cost to repair should run app $350-400 US. More if the TC is bad. Mine goes in tomorrow for this exact problem...

Jon