Thread: TH-400 question

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I recently removed and reinstalled my tranny to have the clutch plates replaced. After re-installing the tranny and driving it around (which it has now been re-installed for approx. two months now) when I drive it kinda hard, it seems to be leaking tranny fluid somewhere from the top of the tranny. I end up with tranny fluid on the top of my air cleaner and firewall which in turn runs down and drips on my exhaust. The only thing I can figure out is that it's coming from the dipstick. Any ideas what's going on? Thanks.

Might be as simple as being overfilled and when it comes up to temp it pushes ATF out the dipstick.

is it possible that the cause of this could be because the dipstick isn't sealed? I had to add a full quart the other day, but it still leaks. Is the actual dipstick supposed to be sealed with an O-ring? If so, I would have never guessed that the actual stick would have pressure in it....learn something new everyday.

Originally Posted by kahouna23

is it possible that the cause of this could be because the dipstick isn't sealed? I had to add a full quart the other day, but it still leaks. Is the actual dipstick supposed to be sealed with an O-ring? If so, I would have never guessed that the actual stick would have pressure in it....learn something new everyday.

there is no pressure at the dip stick. if it is you have a problem. there is a air vent on top of the trans. check and see of its open. how are you checking the fluid? might not be cooling and that will boil it out.