A spark plug is a small but important part of an engine. It delivers the spark that ignites the fuel-air mixture, allowing the engine to run smoothly. When a spark plug fails, the engine may misfire, ...

Though the entirety of your car’s movement depends on your spark plugs working perfectly, they’re one of those car parts that people often overlook, forgotten and unloved. That shouldn’t be the case, ...

Look at the tip of the removed spark plug. A spark plug should come out of an engine with a central electrode that's got a light gray or brown residue. It should be free from any oily or fluffy black ...

We may receive a commission on purchases made from links. When it comes to engine care 101, a spark plug replacement — also referred to as a tune-up — is an essential task. Spark plugs, as the name ...

Spark plugs are integral components for gas-powered internal combustion engines. These diminutive devices create the electric spark that ignites the fuel and air mixture inside your motor. When ...

Spark plugs are small, cylindrical devices that use electricity to trigger combustion of the gas/air mixture in engines, allowing them to start and continue running. They do this by turning incoming ...