If you really think about it, starting our cars as easily as we do every day is something of a modern miracle. We jump into our vehicles, turn a key (or even just push a button on many occasions), and ...

Solenoids are everywhere. They open the water valve in your dishwasher, control the flow of gas in your stove, regulate ink delivery in printers, and play a crucial role under the hood of your car.

You hop in your Dodge diesel and turn the key only to be greeted with a click-click sound, instead of the more familiar whirring of your starter motor. Something is wrong. You somehow knew that the ...