The ignition coils in your car provide the high voltage electrical current that allows your spark plug to create its spark. These parts are humble looking, and they make use of relatively simple ...

If your Mercedes is running rough, shaking, or flashing the check engine light, a failing ignition coil could be the culprit. With the right tools, many owners can replace coils themselves in under an ...

From sudden misfires to rough idling, a failing ignition coil can turn your smooth Toyota drive into a frustrating experience. Knowing the signs, how to test them, and when to replace them can save ...