I have water coming out of the tail pipe. Stock 89 Accord LX-i. Could be water from a carwash accidentally sprayed in there - school car wash done by high school girls? could be something else. When it's in park, I hit the gas and water comes shooting out of tail pipe. Sprayed out 3 foot long stream of water. I do this once a day to see if the water still comes out. I need some help.

 

Sure its not gas? Having to put fluid in anything in your car at all? If not id saying people were ******* with you and put it in there late and night and held it in with something, condensation happens to. Either that or you have a magical Accord.

 

coolant leak maybe? sounds more like a prank, though

 

could be a blown head gasket

 

Water is a normal byproduct of burning hydrocarbons (petroleum products) and is a daily occurance here in the north. Even in the summer, it's not uncommon for water to exit the pipe during warmup.
In effect, the water formed from burning fuel exits the engine as a vapor. It condenses inside the cold (relative) exhaust pipe and collects in the muffler, where it either drains out the drain hole or is blown out the pipe. It normally stops after everything heats up.
The only other sourse would be coolant leaking past the head gasket, but that would show up by your loosing coolant.

P