Ok, so did the car overheat? Was it just leaking? Civic's don't really tend to "blow" hoses as often as one might be old and start leaking. Changing the plugs and wires really didn't need to be done. People powerwash there engine bays all the time without problems. Did you take the cap off the distributer and whip it clean and dry. Any moisture in the cap and rotor area will cause it not to run.