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It's steam from boiling coolant (or water) coming out of the overflow hose connected to the top of the radiator just below the level of the cap.

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13y ago

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is my battery gonna explode?

Signs of your battery exploding can be swelling overheating and a hissing noise


Why is your car steaming only in drive but not overheating?

my car isn't steaming only in drive but not overheating.


What would cause a car to shut off then a make hissing noise?

If it it shutting off because of the hissing, it is likely moisture getting at electronic parts and shorting them. The hissing would be caused by cold water contacting hot engine parts. If the hissing is only heard after YOU shut off the car, it is likely a small leak in a vacuum hose. These are usually easily fixed.


Your car runs hot all the time it leaks antifreeze and it makes a hissing sound when you drive whats wrong with your car?

It is overheating. Possible causes are thermostat stuck closed, defective water pump, cooling fan not working, clogged radiator, and more. STOP drivng this car until you get this fixed. You are going to ruin this engine if you have not already done so.


Why is my car overheating when in idle?

Your car is overheating when idle because there may be a lack of oil or water in the engine. It can also be a problem with the engine itself. If your car is overheating, simply contact a wrecker or a road assistance company. The police are also available to assist you.


Should you buy a car with overheating problems?

You should not buy a car with overheating problems. This means that it will not serve the purpose and will develop other mechanical problems.


What does it mean when your car is overheating and smoking and a noise coming from the engine?

your car is broken


What is wrong with your car if the engine cuts off and the car starts to smoke?

It means the car is overheating.


Why is my car overheating and revs up and down?

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1992 cadillac deville it started hissing down by the brake pedal when you press the brake pedal down the hissing goes away but then the car idols rough when you let go the car idols fine but hi?

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What could be the hissing sound that comes from your under the car after you accelerate?

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Why is your car still overheating I have changed my thermostat and flushed the radiator and the car is still overheating?

Either the water pump impeller is loose on it's shaft, or you have a leaking head gasket.