Reviewed By Michael W (Yankton, SD) Reviewed for a 2002 Ford Ranger —10/13/2016 12:05 PM
Idle is smoother and better acceleration.
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Learn the difference between how a spark plug works and what makes a glow plug glow.
One of the least thought about parts of your automobile is the humble spark plug. So small and inconsequential looking, most folks are happy to go along without giving their spark plugs a second thought—until they don’t work. Suddenly, this tiny part can bring your whole day to a halt. But, we can prevent the heartache and an expensive tow job by learning what do spark plugs do and more importantly, how spark plugs work.
Looking to upgrade your ignition coil? Find out everything you need to know when choosing the best ignition coil for your year, make and model.
Know before you buy! Read customer reviews about Ignition Systems or ask our Product Experts.
What are the Best Spark Plugs for your Car, Truck or SUV?