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Spark Plugs and Wires

How do you change spark plugs in a suburban?


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2015-07-15 21:05:09
2015-07-15 21:05:09

Assuming you have the proper replacement plugs, a deep socket wrench and the round spark plug gap gauge you are ready. Remove one spark plug wire by gently rotating the cap on the spark plug to break the seal and remove it carefully. Check the gap on the new plug and adjust if not properly preset. The owner's manual has the gap listed as well as the autoparts store. Loosen the plug and replace one by one putting the wire back and pressing it into place until you feel a little snap. Be careful not to get the socket wrench off center as you tighten or you can crack the ceramic of the plug. Follow the directions in the box as to how tight. Look at the web site of the plug manufacturer for more info.

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