Modern cars are packed with software and sensors, but the parts that quietly keep them moving are still surprisingly simple.

It's relatively fine for car engines to get wet. What's not okay is for water to get inside the engine or for electrical parts to soak in liquid, like the ignition coils, spark plugs, distributor ...

The engine is the lifeblood of a car. It converts fuel, usually gasoline, into physical motion that turns the wheels and makes the vehicles go. Over the years, as technology advanced, so too did ...