We may receive a commission on purchases made from links. Some people have described the Ford 5.4L Triton engine as "one of the worst V8's ever produced." And while it didn't make it onto our list of ...

A frustrating misfire with no diagnostic codes leads to an unexpected discovery. One spark plug reveals what was hiding ...

When you find yourself in the market for a new vehicle, you may have to pick between a diesel- or gas-powered car. As a fuel, diesel may be a little more expensive than gas, but it comes with a host ...

Various spark plug failures, including internal resistor defects, insulator failures, and physical detachment, are causing diverse engine performance issues in aircraft. These failures manifest as ...

If you consider your spark plugs little more than disposable engine parts to be replaced for every event or two, you're missing out on a valuable engine-tuning tool. Not only can the correct plug ...

If there is a component on a Pontiac engine that gets little or no thought, it's the spark plug. We refuse to spend much money or time on them, but unless your Pontiac is powered by a GM diesel, the ...