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What can cause a heavily mixing oil and water in the engine but no oil found in the radiator

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There is oil already in the engine oil pan and lubrication system and apart from some condensation there should be no water. The only place water can come from in any quantity is from the cooling system and although cracks and leaky water heated inlet manifolds and gaskets can be the cause the most common source of coolant ingress is the cylinder head gasket.

A failing head gasket doesn't very often mean there will be oil in the coolant.

Posted on Apr 20, 2015

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Posted on Jan 02, 2017

  • 125 Answers

SOURCE: water/oil mixing in 22r engine

yes it can mix, also check the timing cover for rubs from the timing chain. this is the common problem with 22r. many mechanics will tell you its the block but they are just trying to make money.

Posted on May 02, 2009

junmag
  • 175 Answers

SOURCE: I found milky fluid in the radiator -Nissan X-trail PNT30

the transmission oil cooler is on the lower part of the radiator. it might have a hole inside. you need to replace the radiator and flush the transmission fluid several times

Posted on Jun 02, 2009

  • 1 Answer

SOURCE: water is mixed with oil.

I think you have a bad intake gasket. These engines,(vortec v8 and v6 ) are well known for this problem

Posted on Nov 09, 2009

  • 1 Answer

SOURCE: audi a4 mixing water and oil together hissing,grey/brown foam

Just went through the whole process changed the head gasket and still got oil - thanks to guys on the forum that said there is no other way besides the head gasket, went to an audi mechanic and he just laughed, he said 99% of the time it is the oil cooler. He was right.

Posted on Apr 19, 2010

  • 653 Answers

SOURCE: 2003 Saturn VUE 3.0L v6. Overheating,

Replace the head gaskets. It would have passed the smog test, because oil and water are not getting in to the cylinders.

Posted on Sep 19, 2011

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2 Answers

My 1Rz engine has oil in the radiator mixes with water but not water mixed with oil in the sump and its not overheating its running fine


toyota engine ...typicaly hilux Efi

inlet manifold gasket blown
corroded water jackets on the inlet side

if found to be sound
wont be long before the oil will mix with the sump
try re torque the head bolts as a stop gap
head warped or blown across water jackets of the block
and not the oil jackets yet



toyota_1rz_20_efi_hiace-ldszvhuomwkbtubxskurqnxk-1-1.jpg

Apr 06, 2017 | Cars & Trucks

2 Answers

Why engine oil and water mixed in mazda3


Um, most likely not good. Most likely means the block is cracked allowing the water and oil to mix. Major engine repair.

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May 16, 2016 | Cars & Trucks

2 Answers

The engine is 4d33, now there is a heavy mixing of oil in the engine but no oil found in the radiator, when ur pouring water in the radiator it's not getting full whilst it is running


Blown Head Gasket Symptoms:
  • Coolant leaking externally from bellow the exhaust manifold.
  • White smoke from the exhaust pipe.
  • Overheating engine.
  • Bubbles in the radiator or coolant overflow tank.
  • White milky oil.
  • Significant loss of coolant with no visible leaks.

Apr 20, 2015 | Cars & Trucks

1 Answer

I have a 2004 pacifica oil is mixing with radiator


There is a bad gasket be it the head, intake or a crack in the block or head. Have it tested and yes you have oil in the engine also with the water. The oil genie didn't just put oil in the overflow it's all over. If the antifreeze gets to the valves mixed with oil it can cause the valves to stick shut or open

Oct 04, 2014 | 2004 Chrysler Pacifica

1 Answer

Oil and water mixing together


Blown head gasket or cracked intake manifold or bad intake manifold gasket.

Jan 17, 2013 | Cars & Trucks

1 Answer

How would i know if my overheating problem in my 97 Geo Metro Prizm is a radiator, water pump, blown head gasket, cracked head or a thermostat problem. is there some way i can check for this?


Oil and coolant mixed usually means the engine is damaged.
Blown head gasket, or cracked block - head.
You may have coolant in the engine oil too.
I would not drive it.

Jul 25, 2012 | 1997 Geo Prizm

2 Answers

Hi, i have automatic passat 1999 model and recently water happens to get into the gear box and it control board, i experiences a boom sound anytime the gear is changed, the oil has been changed by the...


If no external leak and the transmission fluid colour looks white, the problem belongs to the automatic gearbox oil cooler. The oil cooler has broke mixing the gearbox oil and coolant causing this milkshake. It's a small radiator core type oil / water heat exchanger. It is cracked inside and transmission oil is mixed with engine coolant. Because the transmission oil pressure is greater than engine coolant pressure, the transmission fluid level drops. See also the coolant colour inside recovery coolant reservoir inder bonnet! It could be like this:

tdisline_495.jpg
The automatic gearbox oil cooler type oil / water heat exchanger (oil cooler):

tdisline_496.jpg
In the picture above the transmission oil pan was removed for oil filter replacement.

May 05, 2011 | 1999 Volkswagen Passat

2 Answers

Antifreeze looks almost black in color is thisnormal.


No this is not normal, Sounds like you may be getting a little oil mixed with the water flow. I would have this checked out because you may have a crack within the engine allowing oil to mix with your coolant system.

May 10, 2010 | 2000 Toyota Camry Solara

4 Answers

There is oil in the radiator


could becoming from ur oil cooler lines that go into rad,,,could have internal crack in rad,,,pull dip stick out & ck to see if motor oil is low or a grayish color,,if ok ck trans fluid to see if is low,,have to find out what kind of oil residua is in the over flow jug

May 08, 2010 | 1998 Chevrolet Astro

1 Answer

1999 tahoe 5.7L has a problem. Water mixed with engine oil.


If it was not overheated real bad the intake gaskets are a big problem on those engines

Nov 04, 2009 | Chevrolet Tahoe Cars & Trucks

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