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We are committed to training everyone on auto repair and maintenance, from DIYers to high-level technicians. Find resources, tips, how-to guides and more on spark plugs, technical sensors, vehicle electronics and caring for a range of vehicles.

What do the wire colors represent?

March 19, 2019 Resources, Technical Training, Trade, Sensors, Article
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How do I install spark plugs correctly?

March 19, 2019 DIY, Resources, Students/Educators, Technical Training, Trade, Spark Plugs, Article, Video
How do I install spark plugs correctly? It is essential to tighten a spark plug to the specified turning angle or torque setting. First, screw in the plug finger tight until the gasket meets the cylinder head. Then seat the plug/gasket with a torque or…
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Are special plugs always necessary on a modified engine?

March 19, 2019 DIY, Resources, Students/Educators, Technical Training, Trade, Spark Plugs, Article
ARE SPECIAL PLUGS NECESSARY ON A MODIFIED ENGINE? It depends on the modifications. The term “modified” refers to those engines with bolt-on components that may or may not raise the total compression ratio of the engine. These can include turbocharging,…
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Do I need to set the "gap" when installing a new set of plugs?

March 19, 2019 DIY, Resources, Students/Educators, Technical Training, Trade, Spark Plugs, Article, Video
DO I NEED TO SET THE “GAP” WHEN INSTALLING A NEW SET OF PLUGS? Maybe. A spark plug part number might fit hundreds of different engines from many different manufacturers. Although the NGK factory will set the gap to a preselected setting, this…
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Why are there different heat ranges?

March 18, 2019 DIY, Resources, Students/Educators, Technical Training, Trade, Spark Plugs, Video
WHY ARE THERE DIFFERENT HEAT RANGES? It is a common misconception that spark plugs create heat. They don’t. the spark plug heat range only indicates the rate at which the spark plug dissipates its firing end heat to the engine. Selecting a spark…
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