Ignition coils play a crucial role in a vehicle’s ignition system. They serve to convert the battery’s low voltage into the high voltage necessary to fire the spark plugs. If there’s any ...

“With a new or existing furnace, there will be a cased coil attached to the furnace with an evaporator coil inside. Bosch cased coils will include a factory-installed A2L sensor on the evaporator coil ...