Ignition Coil - Why It’s Important to Change: Powers the spark plugs: The ignition coil converts battery voltage into the high voltage needed by the spark plugs. Worn coil = misfires or no start: A failing coil can cause misfires, loss of power, hard starts, or even prevent the car from starting. Protects other engine parts: Driving with a bad coil can damage your catalytic converter due to unburned fuel. #norwoodautoservice #mechaniclife #mechasymechas #asmrvids #autorepairshop | No Name Auto R