Before you channel your inner pit crew, gather your gear. You’ll need a socket wrench set, a pair of pliers (needle-nose are ideal), a flathead screwdriver, and maybe a wire brush for cleaning terminals. Oh, and a multimeter—because guessing is for psychics, not mechanics.
Fun fact: the world’s first commercial solenoid was patented in 1823 by William Sturgeon. He probably dreamed of spaceships, but we use his invention to keep our lawn sprinklers from turning into silent fountains of regret. Grab a can of WD-40, too—it’s basically the duct tape of the lubricant world.
