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DannyPru

New Member
Joined
May 31, 2015
Messages
1
Reaction score
0
City, State
Slidell, Louisiana
Year, Model & Trim Level
2004 Explorer
I have 2004 4.0 SOHC. I am getting coolant in the oil. I had the head gaskets changed. Has good compression, did a cylinder leak down test which was good and I am still losing coolant with some milky substance on oil cap.

My question is: Has anyone heard of bad engine oil cooler?

p.s. Had good compression and cylinder leak down test before head gasket change.
 




Number4

"I'm counting to 3, then I'm getting your dad."
Elite Explorer
Joined
March 16, 2013
Messages
4,066
Reaction score
152
City, State
Woodstock, GA
Year, Model & Trim Level
04 Ford Explorer 4.6l
The oil filter adapter also has coolant going thru it. If the gasket to block fails, you'll get what you have. Believe it's fairly common on the 4.0. There are threads here about it.
 




shucker1

Elite Explorer
Joined
May 4, 2008
Messages
2,108
Reaction score
439
City, State
Metairie, Louisiana
Year, Model & Trim Level
98 XLT 5.0
Not sure about the 4.0 having a water to oil cooler but I am getting rid of mine on a 98 5.0 before it fails.

Relocating oil filter and adding a air to oil cooler soon.
 




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