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Chevy Tahoe

How do you know if a ignition coil still works?

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Answered 2007-02-26 03:59:41

Is this a conventional coil, a hei coil, or a coil over each plug?? need more info, but is has a wire, hold approximately 1/4 inch from ground and see if archs, if High Energy coil, hold plug wire about 1/4 in from ground and see if fires, if coil over plug individualy, not sure how to check them. good luck

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