How does spark plug timing work? An explanation of automotive ignition systems. Ignition coils, distributors, and firing intervals all play an important role in ignition. Note: The cylinder order from ...

Just like spark plugs, ignition coils can wear down and become faulty over time. There are many common signs that an ignition coil is getting bad, but one obvious sign is an engine misfire, typically ...

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 ...