Rodents Chew on Car Wires Consequences of Rodent Damage: Malfunctioning Components: Chewed wires can lead to a variety of problems, including issues with the engine, lights, sensors, and other electrical components. Expensive Repairs: Repairing or replacing damaged wiring harnesses can be costly, potentially running into the thousands of dollars. Safety Hazards: Damaged wiring can pose safety risks, potentially causing electrical shorts, fires, or malfunctions while driving.