Will a Bad Spark Plug Make My Car Sputter?

Answer Spark plugs serve one of the most important functions on the automotive internal combustion engine. They receive a high-voltage, timed spark from the ignition coil, distribution system and plug wir... Read More »

Top Q&A For: Will a Bad Spark Plug Make My Car Sputter

Will Removing the Spark Plug Wire Make the Rod Knock Go Away?

Eliminating the ignition source for the cylinder exhibiting rod knock does seem to make the defect disappear. However, a rod knock indicates a mechanical problem at the bottom end of the piston-con... Read More »

Will Changing Spark Plug Wires Improve Fuel Efficiency?

Common wisdom has it that increasing a spark's energy is always good for a boost in fuel economy, and aftermarket companies are as guilty as anyone for spreading the idea. While this is true to a c... Read More »

How to Make a Spark Plug Wire Longer?

You did some engine customization and added or relocated a few components. Now, one or more of your OEM spark plug wires no longer reach the plugs. It's a headache, particularly with high-performan... Read More »

Do Spark Plug Wires Make a Difference?

The condition of your plug wires can make a definite difference in how your vehicle runs. Worn or damaged spark plug wires can cause engine sputter or misfiring. A bad plug wire can prevent the eng... Read More »