Question about Volvo XC90

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Oil mixing coolant

I have noticed oil in the coolant tank,coolant on oil deep stick and on the oil topup cap ,what could be the problem

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  • 5 Answers

Blown head gasket

Posted on Apr 04, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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ddbmike
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SOURCE: 97 Catera low coolant light is on

sensor is part of the overflow tank. lift the tank up and unplug the plug on the bottom. you can just cut off the plug and splice the two wires together or take a bread tie and strip off the paper then jump out the plug. to replace the sensor you must buy a new tank.

Posted on Jun 23, 2009

  • 1861 Answers

SOURCE: Automatic - overheating blowing coolant

Most likely the thermostat is sticking. Get the system flushed (get that rusty liquid out of the system), replace the thermostat & put in new coolant. Should fix it.

Posted on Sep 16, 2008

  • 156 Answers

SOURCE: engine oil mixed in coolant

this would more than likely be cause by a bad cylinder head gasket. I would bet 89% this is your problem.

Posted on Mar 27, 2009

alicantecoli
  • 22156 Answers

SOURCE: Oil in expansion (coolant) reservoir Golf 1.4 98

replace the oil cooler first before you change the head gasket ,but normally a 10 year old vehicle often has gasket fatigue ,not made like a good old fashioned copper head gasket ,they rarely went wrong

Posted on May 11, 2010

  • 1 Answer

SOURCE: 2000 Boxster overheating, blowing coolant out of

Whatever you do, do not drive. I got the same problem about 4 hours ago and tried to get home. Half way, no oil pressure, overheat, silly noise from the engine.
Take your Boxster to a shop with a truck, you'll save money.
"One Unhappy Boxster Owner"

Posted on Nov 12, 2010

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1 Answer

Why do I have oil in my 1997 honda civic coolant reservoir tank.


A few things could have happen,
1 you overheated and blew the head gasket and now the oil in mixing with the anti-freeze,
OR due to high Mileage the head gasket has just failed and is leaking into the anti-freeze journals inside the engine.,

Did you check the oil to make sure it's not a white'ish sludge on the inside of the cap, you might be mixing both back and forth..

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Why is oil in coolsnt reservoir of 2001 nissan sentra


this is not GOOD that means somewhere the two are mixing,and it's just a matter of time before it really damages motor.drain oil and check for coolant in oil,look at oil dip stick do you see white stuff on it or mixed oil and foam ? if you have an automatic transmission the coolant and tranny share cooling in bottom of radiaitor ,and that my be what your seeing in coolant tank unless its very dark like used motor oil.

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Why us my 2007 pontiac torrent losing coolant?


When the oil was changed, did anyone reset the oil life monitor? It needs to be reset every time an oil change is done. That would explain why it is telling you to change the oil so soon.If you have a bad head gasket, antifreeze mixes with your oil. Check the oil on the dipstick. Does it look normal? Check under the cap where you pour the oil into the engine. Is the oil cap wet on the bottom? If yes, and the oil on the dipstick does not look normal, the head gasket is defective. It most likely would leak where the thermostat is located, since the gasket seal was taken out and replaced with a new one. It may not have been done correctly. There may be a puncture in a hose. There could be a crack in the coolant reservoir tank. The thermostat must be stuck in the open position or the thermostat was installed backwards for it to take that long to heat up. Refill the coolant reservoir tank with antifreeze and water before driving the car to avoid severe engine damage.

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1 Answer

Coolant mixing with engine oil


Most likely a blown head gasket. Fix quick as possible.

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Oil and Water mixing in the reservior


Bad radiator, blown head gasket.

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AUDI A3 2.0FSI 2004 water in oil with no or very little coolant loss


does car heat. if dops water on dip stick it could meen crack in head gasket.milky collour in oil is aways signe water getting in ti sump. watch out for heating. change oil see if colour in oil changes good luck

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2000 durango milky substance in oil cap


milky in the oil cap is ok -- this is caused by condensation and oil mixing inside the oil cap and it is nothing to be worried about.
now if you look at the dip stick and you see a milky looking oil on it -- and if you do a oil change and notice it to be milky - then this is a sign that you may have a blown head gasket, and this you need to worry about.


c...

Feb 05, 2011 | 2000 Dodge Durango

1 Answer

I keep going through coolant yet when the van sits there doesnt seem to be a leak .... i did notice on the overflow tank there is a opening to where it looks like hose should be ...should there be one...


If no leak is found inspect the inside oil fill cap to the engine. If a yellowish cluster of pudding I call it is stuck inside the cap that is caused by coolant mixing with the engine oil. That means your head gaskets are at fault and they are in need of a replacement

Dec 23, 2010 | 1998 Dodge Caravan

1 Answer

I have 2001 325 bmw the problem is leaking coolant i change de reservoir coolant tank and cap but still loose coolant,the engine does not came hot but need refill coolant whats will be the problem and the...


your coolant and oil engine is mixing you have bad head gasket thats why you have smoke you need gasket work this is were coolant is going mixing with motor oil look at ur oil and it is loke milk white

Feb 20, 2010 | 2001 BMW 325

4 Answers

Engine oil dipstick shows water and rust mixed in with oil


Everyone always jumps to head gaskets. There are plenty of MINOR things that can be looked at first.
The Volvo 2.3, 2.4, 2.5 Inline 5 Cylinder dipstick tube is known to develop a large amount of condensationin winter months and stop and go driving. What you see on your dip stick is possibly just condensation. Take off your oil cap and look under the cap and inside the valve cover. Is there any thick foamy oatmeal like substance or noticeable amounts of water? If your oil was saturated with coolant, you would be able to see it up there too. Check your coolant for oil. Volvo coolant is typically brown to orange, however make sure there is no sludge. Start the car with the cap off and keep an eye out for alot of bubbles. A large amount of bubbles is a sign of a bad head gasket. A couple here and there is just air in your cooling system.
Coolant, Transmission fluid, and Oil have several places they can mix. If you have a turbocharged Volvo, the seals in the turbo can go bad and cause a mix of oil and coolant. Your transmission cooler is also in your radiator, and if it cracks your transmission fluid and coolant can mix. I believe turbo models have an oil cooler built into the radiator as well.
Overall if your car sounds fine, you dont see oatmeal, your not using coolant and oil in excessive amounts, dont have white smoke, and your turbo isnt whining you probably just have condensation in your dip stick. If you are overly concerned you can send a sample of your oil to a lab and have it tested for traces of coolant. Headgaskets rarely fail on Volvo's, even the old ones....I have seen many that have gone to replace them have not found a failed gasket and end up finding a bad transmission cooler or a bad turbo.

May 09, 2009 | 1999 Volvo S70

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