Is it safe to spray your engine with water?
On the majority of modern cars, it is completely safe to spray the engine bay with water. Today’s vehicles have covered air boxes and weather-proof wiring connectors throughout the engine bay. Avoid spraying things like the alternator, intake, or sensors with high-pressure water.
Is it a good idea to wash your car engine?
Is It OK to Wash a Car Engine? You can wash a car engine, but it is important to do so safely. Because if you make even a single mistake, you could encounter a variety of problems. For example, wires, sensors, and other sensitive engine components can be exposed to water if you choose to wash your engine on your own.
Is it OK to wash under the hood of your car?
Because all the aforementioned baddies can seriously deteriorate nonmetal parts and wiring, keep the under-the-hood area as clean as possible. Never use a hose to wash under the hood — the water can ruin the electronics. Have your engine cleaned professionally if it’s too dirty to wipe clean yourself.