I would used to steem clean engins.somtimes a few drops of water would get into the spark plug boots or the distributor and made the car run lousey,so I had to blow the water out with an air hose to get it to run right.If you have a profesional do it,at least you'll know your car is driveable.Not like at the car wash,if you get water in the distributor,the car might not start and that might require a tow (cover the distributor,extremeley well and the alternater,for anyone attemting to do it them selves). Your better off haveing a profesional do it.
