Strange oil leak - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 07-08-2012, 08:39 AM Thread Starter
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Strange oil leak

Hello,

I'm on a trip now and a few days ago I've driven up and down some hills for about half an hour. After that we stopped for a view point and there I saw that there was a trail from where we came from until where we were parked.

I looked under the truck and saw that there was oil flowing out. I checked all fluids and saw that the engine oil was kinda low, so I assumed that this was the leaking fluid.

We went a few miles further to search a Ford mechanic and by the time we got there, there was no more leaking and all fluids were ok again.

Fluids checked: engine oil, transmission oil, coolant, brake oil, higher mileage than usual so there's no diesel leaking either)

Since then, there hasn't been a drop of oil under the truck anymore. What could have happened?? I'm worried, because we're back into the mountains again in a few days.


Thanks for your info,
Mark
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post #2 of 5 Old 07-08-2012, 08:45 AM
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Where was the oil coming from (front of engine, rear of engine, out of bell-housing, back of trans) and what color was it?

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post #3 of 5 Old 07-09-2012, 12:51 AM Thread Starter
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Quote:
Originally Posted by forddieseldoctor View Post
Where was the oil coming from (front of engine, rear of engine, out of bell-housing, back of trans) and what color was it?
Forgot to mention: back side of engine, drivers side, seemed to have run down from a higher place, but I couldn't see from where. I only had the chance of looking under when the leak was gone and there is nothing to see from above.

It looked like engine oil to me, but I'm not sure because the oil inside the engine looks more black than what I've found on the ground.

To exclude tranny oil: Can you loose a qt and probably a lot more transmission oil without seeing it on the dip stick? And can a tranny oil leak stop on itself?


Thanks again,
Mark
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post #4 of 5 Old 07-13-2012, 07:34 PM
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It is possible if you have a trans cooler line leaking. However you should be able to see the loss on the dipstick in either the trans or the engine.

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post #5 of 5 Old 07-20-2012, 08:57 AM Thread Starter
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Back home and have internet again.

Thanks for the info about the cooler lines, I'll try to check that asap. I assume that's a simple job?? (I know very little about these things)

I've had it again on similar occasions (hot oil? and/or higher rpm's?) and I've discovered some things:
* it's definitely transmission oil, I've added a qt in total.
* I checked the oil the wrong way in the beginning (not engaging all gears before checking + oil too hot after climbing hills)
* difficult to find the right oil on the road, especially in France. I've added automatic transmission oil from "Total", which claimed to be compatible with Mercon.
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