Checking Your Spark Plugs

What is the condition of your spark plugs?
 

If you don’t skills to answer that question, then please take into account the subsequent hints and tips for sleuthing hassle.

How do they look?

A good sparking plug with be light-weight grey or tan in color. it'll not have a good deal of abrasion. once the color varies from this recommendation, it might mean that the sparking plug must get replaced. you must conjointly look to make certain that there aren’t any deposits between electrodes. it's a symptom of AN oil leak or poor fuel quality.

Is there AN abnormal sheen?

When wet fouling happens, it will create the highest of the sparking plug seem shiny or oily. It happens once a gasket fails, once the pistons’ oil ring malfunctions, or once there area unit underlying valvetrain issues. This is often not an honest issue and may produce issues once beginning the automobile.
On the opposite hand, the sparking plug shouldn't have a matte coating on that either. This, spoken as dry fouling, may also result in misfiring. It will be caused by a clogged carburetor.

Has the nonconductor broken?
Around the inner tip (the center electrode) of a sparking plug, there's a nonconductor. Once this is often broken or broken the automobile is probably going to misfire. Breakage is commonly the results of culminant thermal enlargement, hot temperature changes. AN example of this is often cold fuel being sprayed on a really hot sparking plug.

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