Oil in degas bottle

[bradfr]

I just bought a 2004 F250 with a 6.0 motor in it. When I checked my fluid levels I had noticed that there was all kinds of oil in the degas bottle. From what I have read I need a new oil cooler. While I was in there I was going to do an egr cooler delete. I am crossing my fingers that it is just a oil cooler but could I potentially need head gaskets as well?

[purplehorn1977]

chances are if it wasent puking coolant then it just needs the oil cooler. get you some cascade dish washing detergent and flush the coolant system several times with distilled water and the cascade to remove the oil from the system. then fill with distilled water and coolant and should be good to go.

[bradfr]

From what I could tell so far it wasn't puking any coolant. The degas bottle did not look freshly cleaned and I could not see any dried coolant signs around the cap.

[purplehorn1977]

id say you should be good to go then. i just got done doing head gaskets and studs and one piston on mine 2 weeks ago. then last week did 5 inch straight exhaust. best thing i could have done to my truck. egr valve and cooler gone long ago. i made my own delete kit for these as im a cheap skate.

[fordmasterdieseltech]

make sure to replace all rubber coolant related items (upper and lower hoses, heater hoses, thermostat, reservior hoses ect) they will swell like no other when oil contacts them. flush it extremly well making sure to get all the oil out. a ruptered oil cooler is more than likely your only problem.

[bradfr]

Awesome thanks for the tips. I have everything out now, just waiting on the parts to arrive. I was going to flush following the ford TSB for coolant contamination. I hope just allowing the truck to idle in the driveway for 1 hour is sufficent to circulate while flushing the system.

[gunther_01]

I would at least do the high idle mod, and keep the RPM's up some if you hadn't done that mod yet..

[bradfr]

This is kind of a dumb question but should I flush before or after I install the new oil cooler? I hope after because I already have everything torn down ready to install the new parts. Now I am starting to worry that if I free anything up during the flush it will begin to plug my new oil cooler. Is there a way I can temporarily bypass the oil cooler until the flush is complete or is this unsafe?

[Glock-9]

I had that problem at 40,000 miles. I had a oily residue on the surface of my coolant. I took it to Ford for a flush, and the problem is gone. The blame was on surface or machine oils left in the system. The tech says he sees it a lot on first time flushes.

If it were me I would take it to a Ford dealership and have them use their machine to flush the system. You wont have to worry about disposing of the fluids, and/or using dish soap for anything but dishes.

I also added a DFuser coolant filtration system after. I tore apart all of my filters too discover about a TB of sand. Its been over a year and my coolant is squeeky clean. No issues ever.