Every time i start up my car, water shoots out from the muffler like a water hose
I safely assume that this car runs on gas not diesel. When you burn gasoline, as well as carbon monoxide, carbon dioxide, and a whole host of other noxious gases, you get water, produced as a gas (vapour). When this water vapour meets a cooler surface (the inside of your muffler system) it condenses into liquid water and will continue to condense until the surfaces around it give it sufficient energy (via heat) to convert it back to gas.
When you start a car, the water vapour turns to water in your muffler, the pressure of the expanding gases of combustion push the water along with it towards an area of lower pressure (outside the muffler via your tailpipe). Until your muffler system warms up, you WILL get water from your tailpipe.
ASSUMING that your engine is running sweetly, that is, if it is running like a bag of old nails, then you may have a cylinder head gasket (seal) problem. If so, take it to the Honda shop.
Glenn Taylor
England
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