Oil in Radiator and Overflow Canister

[jhickey]

Hello everyone,
I'm new to the Forum and I searched for a couple hours for a post on this topic but didn't find anything. So if this has been discussed already, my apologies. I have a 2010 6.2 and is has 110,000 miles on it. There are no mods done to the truck. It is completely stock.Yesterday I had the dreaded "milk chocolate" leak spot on my driveway. I checked the radiator and overflow and sure enough, oil in the coolant. I checked the oil dipstick and it is at the proper level and clean. Obviously I cant check the transmission dipstick. I'm fairly mechanically inclined (as I used to work on the drive-ability line at a Ford Dealership) but I haven't worked on this truck much. It was my work truck for 70,000 of the miles and now I'm a student and just haven't had the time to work on my own truck, unfortunately.

I was just hoping with the expertise on the forum that someone could give me some insight on how the cooling system, oil cooling system, and transmission cooling systems operate. I know Im probably in for a pretty extensive fix but Im holding out hope that possibly it is isolated to the cooling system and I can fix the "leak", flush the system, and hope for the best. I was also hoping (god forbid) that someone may have seen this problem previously. Thanks for you time and input in advance.

Joe Hickey

 

[PropDr]

An analysis should be able to tell if it is transmission or engine oil.
Most likely culprit would be the radiator.

 

[KaiserM715]

One other area to look is the coolant to oil cooler sandwiched in between the filter and the block.

 

[Yukon Joe]

An analysis should be able to tell if it is transmission or engine oil.
Most likely culprit would be the radiator.

Agree. If the truck is running fine and you don't see any white smoke out the back, this it would probably be one of the coolers in the rad or the cooler KaiserM715 mentioned.

Thank You for your donations to Avery. We hit our goal!

Yukon Joe
Snoball 3
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www.runraptorrun.com

 

[FireForEffect58]

Hello everyone,
I'm new to the Forum and I searched for a couple hours for a post on this topic but didn't find anything. So if this has been discussed already, my apologies. I have a 2010 6.2 and is has 110,000 miles on it. There are no mods done to the truck. It is completely stock.Yesterday I had the dreaded "milk chocolate" leak spot on my driveway. I checked the radiator and overflow and sure enough, oil in the coolant. I checked the oil dipstick and it is at the proper level and clean. Obviously I cant check the transmission dipstick. I'm fairly mechanically inclined (as I used to work on the drive-ability line at a Ford Dealership) but I haven't worked on this truck much. It was my work truck for 70,000 of the miles and now I'm a student and just haven't had the time to work on my own truck, unfortunately.

I was just hoping with the expertise on the forum that someone could give me some insight on how the cooling system, oil cooling system, and transmission cooling systems operate. I know Im probably in for a pretty extensive fix but Im holding out hope that possibly it is isolated to the cooling system and I can fix the "leak", flush the system, and hope for the best. I was also hoping (god forbid) that someone may have seen this problem previously. Thanks for you time and input in advance.

Joe Hickey

What ended up being the problem??

 

[Eightysixd]

Any info on what happened?? I got coolant in my radiator and res also.

 

[1BAD454SSv2]

My 2010 had leaking oil cooler , between oil filter and block . Betting that's it , change that first do a good flush , change out your radiator hoses ,oil will breakdown your hoses . I ended up getting a split in upper radiator hose year later because of the oil damaging inside of hose.