Slight Trans Leak - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 04-15-2016
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Slight Trans Leak

Ever since I got the truck off the lot I've had a very very small trans leak, it leaks in the gap between the oil drain and where the bell house of the trans mates to the back of the engine, I've went back to ford various times with this truck for various reasons and they simply brush everything over like nothing is wrong. The trans was R&R when the previous owner traded in he tore the trans out playing in the mud and ford rebuilt the trans and put it on the lot, got the truck with 84K on it now have 96K so trans only has 12k miles on it, just wondering what it could be maybe they damaged the rear main when they reinstalled, the fluid is bright red so it's not engine oil.

Here are some pictures of various areas on the trans to help you guys,

You can see the little drip, it doesnt drip enought to where I can see it on pavement or the dirt at home nor does it blow back onto the catalyic converter or the trans pan so it must not be that bad
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Its mainly wet at the bottom of the oil pan to the brown gasket on the trans
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Driver Side of Oil Pan is wet
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Passenger Side is dry
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The oil pan was leaking also when I first got the vehicle, but thats been replaced for a good while the fluid was one like blackish like trans and motor oil mixing but ever since Ive replaced lower oil pan gasket its only been red trans fluid.

I know it is hard to see but here is the dipstick with engine idle on level ground at operating temperature. Goes all the way to the " T " in the word " DON'T " so the ford place overfilled the trans, I haven't added or even touched the trans since I've had it just known its had a slight leak since I was the owner.

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Here is the color its kinda like a faded pink color. In between new and needing to be replaced.

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Old 04-15-2016
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Yes, that is ATF, the front seal of the trans is leaking, not uncommon with a rebuild.

Could be new torque converter has a bit too much run out at the seal, or could be the seal itself is not centered, most likely a combination of the two.

Run out is when the shaft the seal rides on is not perfectly round, so seal is pushed back as shaft spins.
Some run out is expected, nothing is perfect, lol.
Automatic's run on Pressure, high pressure.
If you combine maximum accepted run out spec with a new seal that isn't perfectly centered......you can get a leak.

It probably won't get any worse, and they won't fix it because it will be within spec for that small of a leak.

You could try some Lubegard, it can help that seal hold back the pressure.

Average pressure in an automatic is 50-100psi, reverse goes/needs as high as 175psi, which is why it is common to lose Reverse on higher mile automatics, worn internal seals/gaskets allow pressure to go down, if it gets below 150psi reverse won't engage.
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Old 04-15-2016
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Quote:
Originally Posted by RonD View Post
Yes, that is ATF, the front seal of the trans is leaking, not uncommon with a rebuild.

Could be new torque converter has a bit too much run out at the seal, or could be the seal itself is not centered, most likely a combination of the two.

Run out is when the shaft the seal rides on is not perfectly round, so seal is pushed back as shaft spins.
Some run out is expected, nothing is perfect, lol.
Automatic's run on Pressure, high pressure.
If you combine maximum accepted run out spec with a new seal that isn't perfectly centered......you can get a leak.

It probably won't get any worse, and they won't fix it because it will be within spec for that small of a leak.

You could try some Lubegard, it can help that seal hold back the pressure.

Average pressure in an automatic is 50-100psi, reverse goes/needs as high as 175psi, which is why it is common to lose Reverse on higher mile automatics, worn internal seals/gaskets allow pressure to go down, if it gets below 150psi reverse won't engage.
Well that's great...Thanks for the info but the ford place replaced the transmission when they were in ownership of it before they put it on the lot to be sold and I called them and they said there was no transferable warranty, don't understand that, lets dealerships get away with a lot of stuff if its like that and there's no way to fight them over it
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Old 04-15-2016
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Used is used, and with vehicles, "as is" with most sales.

I have had good service from Dealers and bad, same Dealers in some cases, lol.

"You pays yur money and you takes yur chances"

You can always fight, but you can't always win, so best to pick your battles to skew the win percentage in your favor, lol, that's life and the sun comes up tomorrow, we all hope.
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Old 04-15-2016
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Quote:
Originally Posted by RonD View Post
Used is used, and with vehicles, "as is" with most sales.

I have had good service from Dealers and bad, same Dealers in some cases, lol.

"You pays yur money and you takes yur chances"

You can always fight, but you can't always win, so best to pick your battles to skew the win percentage in your favor, lol, that's life and the sun comes up tomorrow, we all hope.
Well I have warranty on the truck still but I've had some many problems off the lot and they have fixed none of them says there's nothing wrong with it, did not know it had a new transmission until the day after i bought it when i went back to to get a part they had to order because they would fix it before they sold it and the guy asked me if i liked it so far told him all the issues i found and he said its got a rebuilt trans it shouldn't be leaking, so he basically sold under false pretences.
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Old 04-15-2016
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Well, a salesman, or anyone for that matter, can say anything or guaranty anything, it isn't binding or even considered valid information in any legal sense, just shows good or bad personal morals.
i.e. "not worth the paper it ISN'T written on"

Bill of sale will have the only binding parameters of the sale, which is why I have always written(in big letters) "AS IS" on bill's of sales for pretty much anything I have sold, vehicles included, no misunderstanding that.

If your warranty covers leaks then go after them
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Old 04-16-2016
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I wish my automatic just had a small leak at the front input seal. lol.

Somebody rebuilt the valve body on mine before I bought the truck. The truck only had 42,000 miles, so I have no idea why it already had transmission issues. Regardless, they forgot to put a few bolts back in, which caused issues that I later fixed. But for the four years I had an automatic, I always had a flashing O/D Off light whenever the truck would go into overdrive. Made driving the truck suck until you shut it off and restarted it. Then it would be fine until it went into overdrive again. I learned to keep it out of overdrive, which in turn kept the light off.

Eventually the whole thing blew up at 72,000 miles and I said screw it and swapped in a manual.

Be grateful you only have a small fluid leak. lol.
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