Question about 2001 Volvo V40

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Milky solution on bottom of oil cap and dip stick

It is a 1.9 L turbo, no eng. light on and runs great, no eng. noise. It has 75,000 miles.

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I'm afraid you may have water in your oil, has the car recently overheated or have you driven through high water? Many times this is a sign of a blown head gasket. You should have it looked at and change the oil. Let me know how it goes and good luck. lone99star

Posted on Jan 15, 2009

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2001 beetle 1.8L turbo lost coolant and quit. fixed hose but now won't start, doesn't sound like its firing at all.


Check there's no water in the oil and the oil is not milky under the oil filler cap and dip stick if it is your head gasket has blown

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Check for steam-in the exhaust and check for bubbles when the engine is first started. Check for milky appearance in oil dip stick or milky appearance on oil fill cap.

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You need to run a compression check on the cylinders and see if you have a head gasket leaking or an intake gasket leak. Milky look to the dipstick can only mean one thing and that is water in the oil and maybe the leak is just starting. It might be condensate but if it is it is not normal. If you don't find a problem I would check regular to make sure it is not getting worse.

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WHITE SMOKE IS USALLY A SIGN OF THE HEAD GASKET IS BEGINNING TO LEAK WHAT IT DOES IT DEPOSIT'S ANTI-FREEZE ON THE TOP OF YOU PISTONS WHICH IN TURN FOULS YOUR SPARK PLUGS.IT PROBALLY RUNS ROUGH WHEN IT ACTUALLY STARTS CHECK YOUR ENGINE OIL FILLER CAP FOR WHITE MILKY LOOKING STUFF OR YOUR DIP STICK.

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What's the brown oil like substance in my surge tank I use dexcool antifreeze



  • Sounds to me like the antifreeze needs flushed. The say it's good for 100,000 miles but my experience is 75,000 miles max. When Dexcool gets old it turns a brownish tinge.


  • Now you want to make sure to pull the oil dip stick and make sure it does not look like chocolate mile. If it does then you have a cracked head or head gasket.

  • This can also be a little dirt/rust in the system. If the oil on the dip stick looks normal the flush your coolant.

  • Thanks for using FixYa

Regards, Tony

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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...

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2000 lincoln ls v8 nocking noise in frout center of motor runs rough


this is sounding like you might have a blown head gasket. you can check for this in a few ways the simplist first. pull the oil filler cap off of the valve cover and check for a milky white or cream color residue on the underside of the cap. pull the oil dip stick and check for abnormally high oil level on the stick.you can also look in the overflow bottle to see if there are air bubbles being manufactured in the fluid. the surest way to tell what is going on is to do a compression test on the motor this will tell you exactly where the head gasket has been blown. not good nes im afraid this kind of repair will cost several hundred dollars.

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Known issues or not,It sounds like the head gasket is blown,or it has a cracked head.If it was water it would be thick and light grey in color on the dip stick,But yellow indicates antifreeze leak that has not had time to mix with the oil.

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