Hi everyone, I've been trying to figure out a transmission fluid leak in my 1999 Accord LX 4 cyl. The leak is somehow coming out on top of the transmission:



I've checked the parts near the bottom of the transmission and around the sides and cleaned them all up to isolate the issue to the top of the transmission (which eventually leaks back down to the bottom probably by spilling down the side I believe). Both transmission fluid cooler hoses are dry as well.

Looking at the factory service manual, I think it may be the 2nd clutch pressure switch underneath the big radiator hose and the distributor -- are there any other parts that I should look out for while I'm in there? Also, is there a good way to get to it without spilling coolant everywhere?

Thanks!

 

Is your transmission breather/vent tube in place?

https://honda-tech.com/forums/honda-...ticed-3262941/

 

Hi, thanks for the pointer.

The open end of the breather tube is in place (over the top of the big radiator hose) -- the end that connects to the transmission also seems to be fine (it's under the transmission mount?). It looks dirty from transmission fluid but I don't think it's the source of the leak:



I don't think I've overfilled the transmission fluid either, as the leak is still going and the transmission fluid level barely touches the bottom of the dipstick. I checked right after a decently long drive on a flat road.

Thanks for your help.

 

Thanks for the pointer. Seems like my previous reply from a few days ago didn't go through; not sure why.

The open end of the breather tube securely hangs over the big radiator hose on a bracket. I assume the other end of the breather tube is connected to the transmission under the transmission mount:




If so, it doesn't seem to be the issue -- it's dirty from the dried transmission fluid that got down to it, but it does not look like the source of the leak. The source seems to be further back on the transmission as seen in the picture above (the picture is taken from the front of the car, facing the firewall), but I still can't figure out where it might be. Would you happen to know of any other possible spots?

Thanks.