1999 Infiniti qx4 Ignition Coil
Ignition coils are basically a transformer. It converts a low voltage into high voltage to create a spark at the spark plug. Ignition coils can be damaged by heat and vibration, but the number one killer is voltage overload caused by bad spark plugs or plug wires. If your 1999 Infiniti Qx4 is unable to start, or you are experiencing rough or sluggish driveit might be time to replace the ignition coils. We offer matching ignition coil for your car.