Water in the oil

2010 LINCOLN MKZ
150,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
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DFLEENER77
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Water is mixing in with the oil. it seems like when I add water without it running it goes straight to the oil pan but I might just be paranoid. do you think it's a head gasket or something else?
Mar 27, 2020 at 3:53 PM
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BMDOUBLE
  • ASE Certified Mechanic
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These engines are notorious for water pump failures, and the reason for coolant getting into the oil pan is because the water pump is driven by the timing chain and thus is in the timing cover. not an easy quick job like an older vehicle unfortunately!
Mar 27, 2020 at 4:40 PM
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JACOBANDNICKOLAS
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Hi,

Most commonly, it is a head gasket. Do me a favor. Take a look through this link. It discusses how to identify head gaskets issues.

https://www.2carpros.com/articles/head-gasket-blown-test

I have to be honest, chances are it is a head gasket. Once you look through the link, let me know if you feel the same. I can help get you through repairs if we determine that is the problem.

Just another thought. It is a good idea to try a compression test to see if there is a cylinder that has low compression. That is usually another good indicator that a head gasket has failed.

https://www.2carpros.com/articles/how-to-test-engine-compression



Let me know.
Joe
Mar 27, 2020 at 4:43 PM
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DFLEENER77
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I also noticed moisture on intake.
Hopefully you can see it.
Mar 29, 2020 at 5:26 PM
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JACOBANDNICKOLAS
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On the front of the intake, I see something that appears white. Is that oil or a reflection? I ask because that is what oil and coolant mixed will often look like.

Have you had a chance to inspect the water pump and review the link I added last time?

Joe
Mar 29, 2020 at 6:10 PM
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DFLEENER77
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No I have not and that is a reflection.
Mar 30, 2020 at 7:36 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
Okay, that's good news. I thought something was spraying contaminated oil on it. When you get a chance, let me know what you find.

Joe
Mar 30, 2020 at 8:17 PM
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