The 6.0l diesel is noted for having oil and fuel enter the coolant system. If it is oil then the oil cooler has failed. The oil cooler is located the the center of the engine under the intake.On an F-series truck the oil cooler is below the oil filter housing. It can be identified by two things. The low oil pressure sensor and a small blue or orange hose is connected to the cooler. If it is fuel in the coolant then you have a cracked head or cracked injector sleeve.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Water in the oil is not the only symptom of a blown head gasket. You can have a blown gasket where the cylinder gasses are being injected into the the water jacket only. This will overpressurize and overheat the engine. There is a test that can detect this using a coolant sample from the radiator to test for hydrocarbons present in exhaust. Lastly, the gasket can blow to the exterior of the engine, allowing compression gasses to escape the engine block. The quickest DIY test to determine the possibility of a blown gasket is a cylinder compression test. The compression should be approximately the same in all cylinders and should not leak down quickly. If it does, this indicates either a blown head gasket or possible valve issues.
You should get it to a dealer or a good diesel facility asap, it sounds like a blown head gasket-driving it like that will damage crank and cam bearings or worse, so it is not worth taking a chance-these are prone to blown head gaskets btw.
the head gaskets are blown you can believe that anytime on any engine gas or deisel that you get oil in the radiator and there water/ antifreeze in the oil pan the gaskets and or cylinder heads are bad
how did the diesel get in there? are you sure its diesel fuel or is it motor oil? then it could be head gasket problem. Or trans fluid, which would make it milky pink? Then it could be the trans cooler in the radiator leaking. If someone accidently put diesel fuel in it then just flush it out. If it has been in there long enough to start ruining hoses then replace those. why does he say gaskets? how does it run? does it overheat? then maybee head gaskets. and resurface heads.
oil in the coolant generally indicates a blown head gasket. If the head gasket is blown, oil and coolant could be getting into the cylinders. You should have a mechanic check it out. I don't know a whole lot about dianosinng diesels. If you can get the glow plugs out, turn it over and see it any water or oil blows out of the holes.