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Anonymous Posted on Dec 21, 2017

Coolant leak from radiator and white smoke coming from the hood.

I noticed some white smoke coming from under the hood, and when I lifted up the hood, there was some of the coolant by the radiator. Also the reservoir tanks doesn't hold the coolant very long anymore. The car isn't overheating thank God, but I have stopped driving it. What could possibly be the problem?

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Richard Faber

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  • Cars & Trucks Master 1,444 Answers
  • Posted on Dec 21, 2017
Richard Faber
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If you have white smoke coming out of the exhaust you have coolant in combustion chamber. White smoke coming out of under hood usually means that coolant is spraying onto the engine somewhere and burning. To find where the leak is get a leak detection kit. The kit contains a special dye that put in radiator, a uv flashlight, a pair of glasses that allows you to see the dye glowing. Put dye in radiator fill with appropriate level. Run and drive vehicle until smoke comes from under hood. Put on glasses and shine flashlight onto radiator and engine look for glow this will tell where leak is. However if you have oil in water or water in oil don't do this major damage has accord

Dan Apthorp

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  • Cars & Trucks Master 2,824 Answers
  • Posted on Dec 21, 2017
Dan Apthorp
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Sounds like you have blown a head gasket. Do not run the engine like this or you will seize it up . anti freeze will freeze the pistons and you will need a new engine. Hope you have not ruined it now.
White smoke is a sign of water in the piston area.

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5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Nov 08, 2008

SOURCE: chevy cavalier 1997 2.2 coolant leak

IF THE WATER PUMP IS LEAKING WILL STOP LEAK SOLVE THE PROBLEM AS A TEMP RESOLVE

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Anonymous

  • 77 Answers
  • Posted on Feb 17, 2009

SOURCE: Engine low coolant light/overheating engine with white smoke

The condensation inside the hood would bee from the coolant boiling out of the reservoir when it overheated. However, there must be a reason for the overheating and I can imagine it is not good. If you JUST purchased this car, you should be protected by the Lemon Law. Return the car to the dealership and insist that THEY find the problem or supply you with another car. 
If you have had it a while, then find  good mechanic before you warp the head and trash the motor.

Anonymous

  • 135 Answers
  • Posted on Sep 14, 2009

SOURCE: 1996 Acura 3.2TL Overheating Problem...

From your description of symtoms it sounds like you have a bad water pump. If the coolant is not circulating properly you will have a heating problem. Sometimes even a new thermostat can stick and cause the engine to overheat. I have seen them fail in as little as a week after they were installed.

Anonymous

  • 1 Answer
  • Posted on Oct 01, 2009

SOURCE: I have a 1996 Acura 3.2TL[V6] and it is overheating...

I had the same problem, whole new radiator, new hoses, new thermostat, and still overheating. What the problem was for me...bad radiator cap...all that money and a $20 fix...try it?

Testimonial: "YES... I HAD THIS DONE ALREADY... BUT IT HAPPENED EXACTLY AS YOU SAID... THANKS ANYWAY!!!"

Anonymous

  • 1 Answer
  • Posted on Dec 25, 2009

SOURCE: 1993 Toyota Camry V6: Coolant Overheating Problem.

how do u change the water pump in a 1993 toyota camry v6 engine?

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2008 Hemi RAM over 100,000 miles with white smoke coming from under hood.

Steam from antifreeze leak . May be radiator, radiator or heater hoses, thermostat gasket, intake gaskets, etc. . A pressure tester can be used with enginecold to detect leakage area.
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White smoke under hood and running hot

Where is the smoke coming from ?
Something leaking onto the hot exhaust ?
Leak from the radiator or engine ?
Is the radiator loosing coolant ?
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My s 430 has smoke coming from under hood after driving but not all the time temp gauage reads normal. I had oil and trans leaks sealed but it is still happening, what else could it be? Thanks

SMOKE UNDER HOOD COULD BE COOLANT LEAK FROM RADIATOR ITSELF OR CHECK FOR LEAKING TOP RADIATOR HOSE AND CHECK FOR LEAKING BOTTOM RADIATOR HOSE.LOOK UNDER THE HOOD IF COOLANT BOILING OUT COOLANT OVERFLOW JUG ENGINE OVERHEATING FROM BAD THERMOSTAT OR BAD WATER PUMP.CHECK FOR COOLANT LEAK AT WATER PUMP WEEP HOLE.IF SO WATER PUMP NEED REPLACING.ADD MORE COOLANT UNTIL LEVEL CORRECT.TRY LOCATE LEAK. IF CAR OVERHEATED AND BOILED IT OUT. SMOKE UNDER THE HOOD CAN ALSO BE CAUSED BY LEAKING VALVE COVERS WHICH CAN BE FIRE HAZARD IF OIL LEAKS ON HOT EXHAUST MANIFOLD.
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I have smoke, white, coming from under hood, what do i look for to fix it?

White usually means a coolant leak somewhere. If it was burning oil it would have a bluish tint and some sort of burning rubber is going to be black. You are going to want to look for leaks coming from your radiator first then moving to the main radiator hoses and any other rubber hoses you can see. Usually these can be pretty easy to find and fix as you just replace the hose. It also could be spraying from your radiator cap. I recommend carefully looking for the leak with the engine running as this will allow you to follow the smoke and hopefully find the source.
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My car started smelling funny...pulled over lifted hood and it was steaming...white smoke came from under hood and tail pipe, car would not start again. Some say it may be a head gasket? How would I know?

You can tell by looking at dip stick if the oil has a creamy white substance there is antifreeze getting in oil (blown head gasket) or if ther is excessive white smoke coming from exhaust pipe upon acceleration. steam from under hood may be a coolant leak from a rubber hose or it may be leaking from the cylinder head onto the exhaust manifold also the car will be using up antifreeze.
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Car smoking and shuting off

Why did you replace your radiator?
I ask this because I assume the car was overheating or overheated after the radiator swap. If this is the case then how long was it driven while over heating?
Driving in an overheated condition even for a few minutes is enough to warp the aluminum head, (just ask my mother, not once but twice).
First thing I would check is the oil. If the oil appears milky it means that coolant\water if flowing between the oil ports and coolant ports in the head. Also was the color of the smoke white and did it have a sweet odor. If yes to either then the coolant\water is flowing from the coolant ports into the combustion chamber. You would aslo notice a loss of coolant\water with no apparent source.
It sounds like you have a blow head gasket and you can be sure that it also warped the head. A compression test would confirm this.
I really wish I could give you a better explanation for this.
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91 gti 8valve overheating problem blows coolent smoke on the..

Hi,
I'm not familiar with your model to know if you have an engine temp guage or a light that would come on if the engine is overheated. You said the motor wasn't overheating under the hood... but you have an overheating problem? Maybe just a tad bit more info...
Are you losing coolant?
The water pump if bad, would probably leak or make terrible racket.
Just to take a shot at it, since you said it blows smoke through the dash... I'm assuming a kindof white smoke with a rather sweet smell? Have you noticed any wetness on the passenger floor at all? If yes to any of this, I would suspect as you mentioned, a leaking heater core. Hope this helps... Good luck!
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White smoke

The smoke must come from a coolant leak close to the radiator, or a fin crack in the radiator itself. Check all hoses and clamps, idle hot and look for smoke. You may have a heater core corrosion issue, watch close for coolant leaks on the floor mats inside, all of this may be connected and look for leaks where you park. Just a small amount can produce smoke, open the hood when it smokes and look.
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