Sean,
it sounds like you may have cracked your water pump
You
should replace your Timing belt and balance shaft belt (if you are still running Balance Shafts) The timing belt is not meant to get wet with coolant, oil or any other contaminant [contrary to the above comment, the timing belt(s), pulleys, tensioner and water pump do
not get wet any time you wash the engine bay..atleast they don't if your engine has all the guards and covers in proper working order)-the timing belt covers have seals on them...
Contamination of the timing belt(s) can severely alter it's performance and life expectancy.