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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Tranny Leak?

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Old Sep 8, 2007 | 10:15 PM
  #1  
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Tranny Leak?

Hey Guys,

I have an 08 F250 CC 4x4 Short Bed. I noticed a few spots on my drive way and got under the truck. I found some red fluid near the oil pan. I took it straight to the dealer and the service advisor put it up on a lift. The service advisor, diesel tech, and myself got under it and I showed him where I found the oil. We were looking under it w/ the truck running to see if we could trace the leak but we could not and the oil never built up in that spot again while we were checking it out.

They also checked the engine bay and checked all the fluids, all showed that they were filled normal. We checked almost every inch but couldn't find anything. They told me if I find any new spots to bring it straight back.

This Pic shows where I found all the oil collected at. There was NO red oil on any hose or anywhere on the transmission:



A couple weeks went by and now I am seeing more spots. I got under there and took some pics. I could not find it leaking from anywhere that I could see to point me in the direction of the leak.

If you notice in the pic, the oil pan is covered with oilish residue but that's red fluid, not motor oil. The truck runs fine, it still shows as normal on the tranny dip stick, and the tranny temp gauge never goes higher then 1/3 of the way (Not even in the middle). Now, there is no oil where it first collected but now it's on the transmission and on the tranny cooler line as the pics show.







In the last pic, the arrow is pointing to the tranny cooler line. It had some tranny fluid on there so I thought maybe the connections were loose. The connections to the tranny cooler and tranny are all nice and tight with no indication of the leak coming from them. I plan on taking it to my dealer on Monday so we can put it back on the lift and take a look around.

FYI: My driveway is an incline, less then 35ish degrees and the truck sits like / over night and when parked. The weird thing is that after I drive it around (Not babying it) for some time and get back under it, I don't see any oil. If I let it sit over night or it sits for a day or so, those oil leaks show up (In the 2nd set of pics)


TY For any help/suggestions!
 
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Old Sep 9, 2007 | 09:26 AM
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Any chance this has anything to do with the new Coolant Leak TSB referred to in another thread?
 
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Old Sep 9, 2007 | 09:49 AM
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looks like the leak mine had
 
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Old Sep 9, 2007 | 04:11 PM
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Does the dip stick go into the engine/oil pan over 2 fuel lines?

I tried to follow the dip stick into the engine and while trying to find it, I found black MOTOR OIL on the fuel lines.

The fluid is not red, and the tranny is not leaking. It's motor oil on the tranny. I have no idea why it looked red to me but when i wiped it and looked at it in better lighted area, oil was black.

Does anyone know if dip stick gasket issue would cause oil to form in those locations shown in the pictures?
 
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Old Sep 9, 2007 | 04:34 PM
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As bad as you probably dont want to hear this, just keep wiping it off. Monitor it closely over the next say 1000-2000 miles. Remember you have plenty of time on your warranty to get it corrected. If it continues to drip on the driveway, or gets any worse, then bring it back to Ford and have them put the UV dye in it. If it starts to seem less and less, then it is just assembly lube that was very commonly mistaken as a rear main seal leak on the 6.0. Mine never dripped on the driveway, wiped it off at the first and 2nd oil change, it never showed up again. It happened on both 6.0 trucks that I owned. Yes several did have bad RMS in them as well as bedplate leaks as well, so I am not totally writing off that it may not be a leak. However if it were mine, I would in no way, shape, or form want to start pulling a motor out and taking it apart without making darn good and sure

a.) I knew that it was infact a leak and

b.) that I knew exactly 100% without a doubt where it was leaking from.

Several guys with 6.0's wound up being the lab rats for some (not implying all techs) dealer techs that should not have been let anywhere near a 6.0, let alone tools.
 
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Old Sep 9, 2007 | 06:33 PM
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Originally Posted by mrxlh
As bad as you probably dont want to hear this, just keep wiping it off. Monitor it closely over the next say 1000-2000 miles. Remember you have plenty of time on your warranty to get it corrected. If it continues to drip on the driveway, or gets any worse, then bring it back to Ford and have them put the UV dye in it. If it starts to seem less and less, then it is just assembly lube that was very commonly mistaken as a rear main seal leak on the 6.0. Mine never dripped on the driveway, wiped it off at the first and 2nd oil change, it never showed up again. It happened on both 6.0 trucks that I owned. Yes several did have bad RMS in them as well as bedplate leaks as well, so I am not totally writing off that it may not be a leak. However if it were mine, I would in no way, shape, or form want to start pulling a motor out and taking it apart without making darn good and sure

a.) I knew that it was infact a leak and

b.) that I knew exactly 100% without a doubt where it was leaking from.

Several guys with 6.0's wound up being the lab rats for some (not implying all techs) dealer techs that should not have been let anywhere near a 6.0, let alone tools.
Thank you for the information. I really am hesitant to let anyone work on the truck because they (the dealer diesel tech) told me that they are still learning these engines...I don't want mine to be the one they learn on.

Did the issue you have leak oil in the same location as my truck?

I assume if it was a turbo leaking, the burning oil dripping off of it onto the engine would smell.
 
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Old Sep 9, 2007 | 07:25 PM
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Hopefully what he is saying is right and the leak stops.
 
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Old Sep 9, 2007 | 07:39 PM
  #8  
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Originally Posted by RangerEdgeO2
I really am hesitant to let anyone work on the truck because they (the dealer diesel tech) told me that they are still learning these engines...I don't want mine to be the one they learn on.
Ding Ding Ding.............Ladies and Gentleman, we have a winner.

Both of mine were just assembly lube. I know its a 6.0 and not a 6.4, however just about every oil leak winds up on the bellhousing. Common were the 6.0 that wound up there were the,

1. bedplate
2. glowplug harness
3. rear main seal
4. cac tubes
5. turbo drain line
6. rear gear train cover

Again I hate to tell you to "watch it leak" but, however more "dried up" than wound up in the dealers for repairs, if the owners were paitent enough. Plus several of the above mentioned required removal of the cab, and engine. Which was a loss of the truck for several days to a week.
 
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Old Sep 9, 2007 | 08:00 PM
  #9  
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Let me ask you a quick question.

If the truck was over filled with engine oil, would that cause an increase in oil pressure leading to it blowing out of the seal in that area?
 
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Old Sep 9, 2007 | 08:28 PM
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Not very likely.
 
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Old Sep 9, 2007 | 09:18 PM
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The oil that is on the tranny, fuel lines etc, if it's from the engine and NOT lube like you say, should smell exactly like the engine oil right? If it is lube, not engine oil, it shouldn't smell anything like the motor oil in the engine right?

If this is true, I plan on smelling the oils tomorrow lmao.
 
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Old Sep 9, 2007 | 09:39 PM
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Not necessarily. Assembly lube when warm will turn into something that resembles oil, it is also oil soluable so some oil could have wicked out with it.

Best advice I can give you is to get some rags and some electrical cleaner that is non flammable and non intrusive. Spray it everywhere the oil is, and then wipe down what you can, the rest will dry by itself. I would drive it after I clean it and get it good and warm. If it is a leak, you should see something getting damp again. If so, make an appointment with the dealership to get it die checked. If it don't come back right away, just keep checking it.
 
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Old Sep 10, 2007 | 10:31 AM
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Well, I cleaned it up and took it for a drive to get engine to normal op temp.

I got back and checked tranny fluid, it showed normal.

I turned off engine and waited 20min b4 i checked engine oil. Engine oil was above max.

I got under it and saw oil on the transmission. I wiped it off and smelled it, it smelled just like the engine oil did.

I'm going to call my service advisor and see wtf is up. How can it be leaking engine oil yet be over max on the dip stick?
 
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Old Sep 10, 2007 | 02:07 PM
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With as little of oil you are leaking I dont think it would show up low on your dipstick for a while. I had a trace oil leak like that on my 7.3 for a couple years and oil loss was never an issue.
 
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Old Sep 10, 2007 | 03:15 PM
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Maybe your truck was over serviced at some point?
 
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