“Serpentine! Serpentine!” That’s the line in the original 1979 movie ‘The In-Laws’ with Peter Falk and Alan Arkin. In the movie, Arkin’s character, a New York dentist, is caught up in a crazy plot fabricated by Peter Falk’s character, an eccentric and wacky CIA agent. When Arkin runs out from behind a car and into the line of fire to get the keys to the car, Falk tells him to “Serpentine!” When Arkin runs back with the keys but forgets to “Serpentine!” Falk sends him back in the line of fire so he can do it right. Fortunately for your car, truck or SUV, they don’t have to think about it. The serpentine belt, by its very nature, serpentines. According to Meriam-Webster’s dictionary, the word is based on visual representation of a serpent moving through the grass. It weaves back and forth making a squiggly trail. That’s what the serpentine belt does – it runs a weaving pattern between the pullies at the front of the engine. If a serpentine belt fails to serpentine, you’ve got trouble. Th...