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Why Your Car Spit Out Water From Exhaust Pipe

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There are number of reasons why water comes out from the exhaust pipe of your car. Some of the reasons are the good reasons whereas, some are bad reasons.  Should you be worried when you see water coming out from your exhaust? It all depends, you’ll find out soon. By the time you’re done reading this write-up, you’ll know if you should be worries or not.

First of all, let’s get to know the function of this exhaust pipe. An exhaust pipe is a vital component of every car with combustion engine. It aids in emitting exhaust gases produced during the fuel combustion process.

Below are the reasons why water is coming out from your exhaust pipe.

Why Your Car Spit Out Water From Exhaust Pipe

Engine water condensation (Good Reason)

When your engine goes through the internal combustion process, there are various pollutants that form. The three main pollutants are water vapor, nitrogen, and carbon dioxide.

As the exhaust gases are leaving the chamber, the carbon dioxide and water are getting mixed together. The more the engine cools down, the water condensation in the exhaust becomes visible to those from the outside.

When your engine goes through the internal combustion process, there are various pollutants that form. The three main pollutants are water vapor, nitrogen, and carbon dioxide.

As the exhaust gases are leaving the chamber, the carbon dioxide and water are getting mixed together. The more the engine cools down, the water condensation in the exhaust becomes visible to those from the outside.

Catalytic Converter (Good Reason)

When the exhaust system emits toxic carbon gases, the catalytic converter is responsible for reducing the size of these gases before they come out from the tailpipe.

This allows the vehicle to be more environmentally friendly while reducing the risk of harming other people in the process.

However, as the catalytic converter works to reduce these toxic emissions, there is a small amount of water vapor that forms as a result. This water vapor will form little droplets that will come out from the tailpipe.

 Engine Heat (Good Reason)

If you live in an environment with cold temperatures, you can expect to see water coming from your exhaust. The components of an engine normally need a little bit of time to let the oil circulate through them in order to cool them down.

In the meantime, the moving components of the engine are going to generate a lot of heat within the first couple of minutes after start up. The exhaust system is also going to be unusually hot too.

Because of this, water vapor is produced as the heat merges with the cold air. Then you’ll see small water droplets falling from the tailpipe along with a bit of what appears to be white smoke. Just wait a few minutes with the engine running and they should all clear up.

Faulty Piston (Bad Reason)

It can be serious when a bad piston is causing water to come from your tailpipe. You’ll know if the pistons or its rings are the cause because you will also see smoke come out of the tailpipe in addition to the water.

If it is really bad, then a burning smell will fill the interior of the cabin. Either that or it might be a sweet aroma that would indicate an even bigger problem.

So, if you experience any strange smells along with smoke and water coming from your tailpipe, then don’t drive your vehicle. Have it towed to an auto repair shop and have them confirm it’s your pistons and/or piston rings and replace if necessary.

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