If water was sprayed over the engine when the hose blew then the strong probability is that the water turned to steam and got inside your distributor cap. if you have water inside the cap the spark will arc and cause the rough idle. take the distributor cap off and dry it out with a hair dryer. be sure to dry off the rotor as well.















































if the engine wasn't running hot before the hose blew, check for air in the cooling system. you have to purge the cooling system to get the air out, otherwise there will be a big air pocket that gets trapped and causes the coolant to stop circulating.































to purge the system you need to take the coolant overflow jug out and hang it above the level of the firewall/dash. then fill the jug at least halfway. run the engine. when the thermostat opens you'll see the level drop as the coolant runs from the jug into the radiator. continue to let the engine idle for about 5 minutes to ensure all air is bled out.































if the car was running hot before the hose blew then check the thermostat and be sure the engine fan is working.































hope that helps