Question about 1993 Buick Roadmaster

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I have water mixing in my oil,and steam coming out of the oil cap on the valve cover.

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Quit driving this car. you have a blown head gasket. this wiil cost $800.00 to 1500.00 depending on the engine. Is this car worth it?

Posted on Nov 12, 2010


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Noticed fan coming on after short distance water level always low I fill it up every 2 day idle car remove cap water eventually starts to flow out like lava water is not mixed with oil or vice versa

Where is your water flowing out from? the cap? the overflow? If so itd sounds like you have a stuck thermostat. That is where I would start. Also, you'll want to be sure to burp the system of any air. Air pockets in the cooling system expand and turn to high pressure steam that will not let the coolant circulate.

Feb 17, 2017 | Ford Cars & Trucks

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How can I be sure my problem with my 1991 Nissan pickup is oil mixing with coolant

Remove oil filler cap which is normally on top of the rocker cover look at underside of cap, the side that goes into rocker cover, and if it is covererd in a white oily substance or if the tube that the filler cap goes into has the white gunge in it yo have oil and water / coolant mixing in your engine

Mar 11, 2015 | 1991 Nissan Pickup

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There is smoke coming out of the breather and oil filler, what is the problem?

You need to get the compression checked, there is oil getting into the cylinder, bad rings, valves, valve guides and valve seals can cause this....

May 15, 2014 | 1994 Honda Civic

1 Answer

Car overheated today and began to spill oil. now that I've put water and new oil it doesn't leak but the car shakes when I put it in drive

have you checked the compression on all cylinders?;if two adjacent cylinders are in low range,you may have head gasket damaged. Did you notice oil mixed with vapor on the radiatior cap,oil in the radiator/crankcase (oil looks like chocolate color 'cause of oil/water mixed). Do your spark plugs look like they've been steam cleaned?(from steam in the cylinder head)

Aug 03, 2013 | 1996 Jeep Grand Cherokee

2 Answers

There is a white creamy substance around the oil cap what would cause this

The white creamy solution is oil mixed with water. Take out your dipstick and check for the same substance, if so, you have a blown head gasket. If not, it's just condensed water in your valve cover that mixes with the oil, witch isn't really a problem. Have a nice day!

Dec 14, 2010 | 1999 Volkswagen Beetle

3 Answers

What causes the white milky subtance under oil cap. How do you prevent it?

The milky white substance is water mixing with oil. Oil normally mixes with water in your engine from a blown head gasket, but if your not having any problems with your car I have seen where a little water gets under the oil cap from washing the engine down. Hope this helps.

Mar 02, 2010 | 2000 Jeep Grand Cherokee

1 Answer

How do i add oil and water to a toyota corolla 1990

Well, water or coolant should be added to the plastic overflow tank which will be labeled (usually on a black, round cap) as such. They usually are a yellowish or white plastic which is translucent. You'll identify it by words on the side that say "Full hot" and/or "full cold".

I believe on the early 90s corollas the radiator is a sealed unit, but if not look for an octagon shaped cap that says very clearly not to open when hot. Obviously, this means you'll want to make sure the vehicle has been shut off for at least half an hour or more (depending on how hot it runs.) before removing that cap and checking the level. I would recommend that you not add plain water alone. You should always add at least a 50/50 mix of water and coolant. You can readily find pre-mixed coolant at most auto stores and/or department stores.

As for oil, you will find a round cover, most likely with a gnurled grip, on a valve cover, or in front or behind the engine mounted to a tube about 1" to 1 1/2" in diamater. The cover will likely say "Motor Oil" on the top of it, and may tell you what viscosity of oil to use as well.

Jan 30, 2009 | 1990 Toyota Corolla

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