Thread: 350 automatic trans leaking

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Originally Posted by cookster

I been trying to find this leak. The trans leaks when car sits period time. Just change pan gasket. Had it up in air looking. The converter seems to draining back. It's leaking a good three quarts. It also was built two years ago. The car is in storage they just called said made mess on floor again.

I'd check the dipstick O-ring. I had the same problem on my camaro
Good luck

My Jeep truck sits a lot now, and the rear seal begins to leak after I park it for about a week. It is fine as long as I am using it pretty regularly, but once it is parked it starts, and gets worse and worse until I add some fluid and drive it again, then it stops for a while.

I'm waiting until I freshen up the engine and put in another AOD I have waiting to go in there, so I just let it leak and add more for now.

See where yours is leaking by putting those oil absorbent pads you can buy at any marine store, for about a buck each. Put a few under there and see where it is hitting the pads.

Don