Water in oil

ROBBIE ELLIOTT

MEMBER
2004 FORD F-150
4.6L
V8
2WD
AUTOMATIC
93,000 MILES

Can't see where it's leaking from except coming between the driver side motor mount. A freeze plug did come out on the same side but further back from the motor mount. I put in a new freeze plug and still leaking water and oil together. I don't see any cracks and I know the leaks aren't coming from the head gasket. There is a freeze plug behind the motor mount, and I see it's not leaking for sure. Are there freeze plugs behind the timing chain covers that could be leaking into the oil? It leaked all the water into my oil pan! I've changed the oil three times to get the milky oil out of the motor and can't see anything leaking now. I'm really confused, any advice? By the way, the motor sounds perfect. Crazy!

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
42,940 POSTS

I would do a pressure test on the cooling system and look with a flashlight from under the engine because it sounds like you have an external/internal leak in the head gasket. Also drain the oil from the engine and leave the drain plug out so when you pressure test it you can see if coolant starts to roll out of the plug. Here is a guide to help you pressure test the cooling system and I have included an exploded view of the engine so you can see how the engine is configured.

https://www.2carpros.com/articles/radiator-pressure-test

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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