A spark plug is a device that produces an electrical spark, which ignites the mixture of fuel and air in the engine's combustion chambers. A spark plug initiates the combustion in the internal combustion engine. More »

ACDelco spark plugs are spark plugs sold under the automotive parts brand name ACDelco. ACDelco is a brand name owned by General Motors, which manufactures factory parts of GM vehicles and aftermarket parts for other veh... More »

www.reference.com Vehicles Car Parts & Maintenance

Spark plug torque is the recommended amount of force to use when installing spark plugs so that they are not loose or overly tight, either of which prevents them from functioning properly. Torque is measured by a torque ... More »

www.reference.com Vehicles Car Parts & Maintenance

Parts and tools needed for a car's tune-up include spark plugs, a fuel filter, a socket wrench, a spark plug socket, a spark plug gapping tool, the service manual, screwdrivers, crescent wrenches, a distributor cap, spar... More »

Multi-point fuel injection, or MPFI, is a gasoline delivery system that uses four individual fuel injectors to evenly disperse gas into an engine´s combustion chambers. MPFI was developed to succeed the older single-poin... More »

When a vehicle has problems starting, idles roughly, the engine misfires or surges, lacks acceleration or has a noticeable decrease in fuel efficiency, the spark plugs may not work properly. Spark plugs may cease working... More »

Worn or damaged valve guides, worn or damaged piston rings, rich fuel mixture and a leaky head gasket can all be causes of spark plugs fouling. An improperly performing ignition system might also be a cause for spark plu... More »