Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

Gasoline internal combustion engines need three fundamental things: fuel, oxygen, and spark. The sexy aspects of modifying cars are focused on the first two elements: Double Pumper carburetors, ...

My husband and I changed the oil, spark plugs, wires, cap and rotor on our '92 Chevy Blazer yesterday — something we've done many times with no problem. When trying to restart the car, the engine ...

Even the world's finest ignition wires are at the mercy of two things:the ignition system and, of course, Mother Nature. As ignition powerbecomes stronger and spark-plug gaps increase, the chance of ...

Side gapping your car's spark plugs could result in some modest performance gains. Here's what it means, how to do it, and ...