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Water and Oil don't mix

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Gotta agree that they're just throwing a lot of unnecessary parts at the problem. The only justification I can offer for replacing rubber hoses is that oil isn't good for them and can cause swelling and early failure. $620 for two hoses sounds obscene, IMO, as does $90 for a belt (they should be changed at regular intervals but nothing that happened here would have damaged the belt) and the $90 for an "engine clean" sounds more like "gee, can we add any other charges to the bill while we're here?" The coolant tank most likely just needs a good cleaning out, not a replacement at $230 also.
Oil pressure is always higher than coolant system pressure, so in this case you're most likely very fortunate that the mingling of fluids happened on the coolant system side instead of the engine lubrication side.
This sounds like nothing that a competent DIY owner can't handle, it's just parts replacement with a good flushing of the coolant system. If you're not comfortable doing it yourself, find a good independent shop and be adamant about not replacing things that aren't necessary. $3200 is just obscene.
So a little more follow-up. Had the vehicle towed to Independent shop near me and they did a through look see. The oil did not show any contamination and has been said in most cases the oil pressure is higher than the coolant, but after shutdown, residual coolant pressure CAN force coolant into oil. So did oil drain, then ran it for an hour and re-did oil and filter change, just to be safe. Replaced the oil cooler and did a bunch of flushing, with a follow-up flush scheduled in 2 weeks. I do see a thin layer of oil on top of expansion tank, which I soak up with paper towel after cool down. Expect that oil will mostly be gone before the 2 week flush, but if not will do another follow-on flush later. So only parts replaced were the engine oil cooler. And for clarification the $620 for 2 hoses, was both parts and labor to replace as was the $1,300 for the radiator. So the independent shop was a third the cost of the Dealer AND they warranty their work full 2 years parts and labor.
 






Excellent, that's what I would have done also. I hope that shop you found will be great for you in the future too.
 






So a little more follow-up. Had the vehicle towed to Independent shop near me and they did a through look see. The oil did not show any contamination and has been said in most cases the oil pressure is higher than the coolant, but after shutdown, residual coolant pressure CAN force coolant into oil. So did oil drain, then ran it for an hour and re-did oil and filter change, just to be safe. Replaced the oil cooler and did a bunch of flushing, with a follow-up flush scheduled in 2 weeks. I do see a thin layer of oil on top of expansion tank, which I soak up with paper towel after cool down. Expect that oil will mostly be gone before the 2 week flush, but if not will do another follow-on flush later. So only parts replaced were the engine oil cooler. And for clarification the $620 for 2 hoses, was both parts and labor to replace as was the $1,300 for the radiator. So the independent shop was a third the cost of the Dealer AND they warranty their work full 2 years parts and labor.
Sounds like it turned out about as good as you could have expected. Also, this shop seems to be a good one which can be hard to find. A two year parts and labor warranty is very good. I use a shop here run by a Korean family. They are very fast, thorough and will not run up the tab unnecessarily.
 






..................................... So the independent shop was a third the cost of the Dealer AND they warranty their work full 2 years parts and labor.
Glad you were able to get it taken care of at a more reasonable cost. BTW, Ford OEM parts also carry the same warranty.

Peter
 






I am looking for some help. 2015 PIU with the 3.7L and just 60,000 miles and less than 500 idle hours. Vehicle was running normal, parked it and came back 30 minutes later to find puddle of brownish fluid underneath. Looked under hood and found the coolant tank had overflowed and was full of oil and coolant mixture. I assumed catastrophic water pump failure and had it towed to Ford dealer. Service Manager called and said water pump NOT the problem but that the engine oil cooler had burst, which allowed the oil to mix with the coolant (as that was under higher pressure). He said the oil level was low, but that the oil itself was clean. Now engine was running normal at shutdown, no low oil pressure warning, etc. So then comes the bad news.... The quoted cost for repair is over $3,200.00, with $1,300 of that for a radiator and $487 for engine oil cooler, $620 for upper and lower radiator hoses, $230 for the coolant expansion tank, $200 for cooling flush, $90 for serpentine belt and $90 for engine clean. It seems like they are trying to replace anything that came in contact with the coolant and oil mixture, except the heater core, but wondering if that is overkill?? And if the engine oil cooler is separate from the radiator, why can't that just be flushed, why replace at $1,300?? Same with the hoses, wouldn't a good flush clean them out??

Maybe don't let the dealer do it, but I'd swap the radiator. Autozone lists one for your truck at $134, and it's fairly easy to replace.
 






Maybe don't let the dealer do it, but I'd swap the radiator. Autozone lists one for your truck at $134, and it's fairly easy to replace.
I'm guessing that since this happened almost 4 months ago and he had an independent garage do some of the work, that this is no longer an issue although I haven't read where the radiator was replaced.

Peter
 






I'm guessing that since this happened almost 4 months ago and he had an independent garage do some of the work, that this is no longer an issue although I haven't read where the radiator was replaced.

Peter
You are correct Peter, work was done without radiator replacement, just lots of flushing and some Dawn dish soap. All seems fine and my only follow-up would be.... The A/C stopped working and I suspected it might be related to all the prior work, so took it back to the shop and they found an A/C line had been rubbing and created a leak. No way of proving it had been bumped out of position by prior work, so I paid for repair :(
 






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