If your car takes iridium spark plugs, or you DIY your tune-ups by buying plugs in the aftermarket, get ready to unlock a new fear. Just like any other wholesale-fueled market, cheap knockoffs are ...

More From Cars.com: The safest bet is to use the same type of spark plugs that originally came on your car. Keep in mind, though, that if you have an older car you bought used, the original plugs ...

A backfiring car is more than a noisy annoyance, it can mean problems with your engine. Here's what can cause engine ...

When ignited, that mixture explodes, propelling the pistons up and down, causing the crankshaft to spin, and sending power to your car's wheels. Spark plugs work by screwing into the engine's ...

Each manufacturer differs and recommends different miles, so it’s best to consult your owner’s manual to see how often your car’s make and model needs new plugs. There are several signs your ...