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The question could be improved to read: "Why does steam come out of the exhaust when I first start my vehicle?" Answer: condensation. When you shut-off your engine and the the exhaust pipes cool down, water will condense on the interior surfaces of the pipes from the warm air in the exhaust pipes. This water pools there until the engine starts up again. Then, it starts to evaporate and exits the tailpipe as steam. After all the liquid water evaporates and the exhaust pipes get too hot for water to remain on their surfaces, the visible steam will cease to emerge from the tailpipe. So, no; it is most likely not from a blown head gasket or a crack in the engine. If you are not losing coolant then all is well, drive happy

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Can you have a blown head gasket without your car overheating?

Yes but only for a little while. You will definatly notice a blown head gasket by looking for steam in the exhaust and water in your oil.


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You will notice the coolant reservoir level low with no signs of leakage, as the condition advances you may notice white, sweet smelling exhaust coming out the tail pipe and worse, engine coolant mixing with the engine oil.


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A blown head gasket could allow coolant to enter the combustion chamber from the water jacket. The coolant probably is running out the exhaust on first start-up. More often, you will notice the coolant being pumped out of the overflow as the exhaust gas pressurizes the coolant. You should look for this symptom when the engine warms up. Coolant in the exhaust on start-up and then the coolant overpressure overflow from the expansion tank or radiator happening together is almost sure indication of the head gasket failure.


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How do I know if a head gasket is blown in a 2002 Chevy Impala?

To determine if a head gasket is blown in a 2002 Chevy Impala, look for signs such as white smoke from the exhaust, a sweet smell from the exhaust, or overheating issues. You may also notice coolant mixing with oil, which can appear as a milky substance on the oil dipstick. Additionally, check for bubbles in the radiator or coolant reservoir when the engine is running, which can indicate combustion gases leaking into the cooling system. If you suspect a blown head gasket, it's advisable to have a professional mechanic conduct a thorough inspection.


What tells an abnormal amount of water is being emitted for the exhaust of a car?

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Usually this means a head gasket is leaking somewhere. Or if you happen to have a oil cooler mounted to the radiator that could be be where it is leaking, but this is not usually the case. If you notice whitesh smoke out of the exhaust then it is definitely a head gasket leak. Usually the oil will also contain some coolant in it. It will appear as a whitesh foam. This needs to be fixed bc it will only get worse.


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How do you tell if you need a new head gasket?

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Why would coolant be leaking from the exhaust pipe?

That's exactly what it is, water. The products of combustion are water and carbon dioxide. While the exhaust stays hot the water comes out as high temperature steam, usually you don't even notice it. When the exhaust pipe and/or outside temperature is cold enough the exhaust will cool and some of the water vapor will condense into steam and possibly even water that drips from a weep hole in the muffler. If you're seeing a little water drip from the muffler, everything is working as designed.


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