Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/109/az/ignition-coils Rough running, sputtering, bad gas mileage, check engine lights: these are all signs of an ignition problem. Watch this video to find out how to diagnose and correct an ignition coil that may be the culprit in your vehicle!

More Misfires and Rough Running: Diagnosing Ignition Coils! Videos