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Re: Ford 4.6 coils
Posted to Technical Discussion Forum on 3/16/2010 2 Replies

A quick parade of coil current will most times find the coils that have failed or on their way out. [1999 Ford F-250 Super Duty XLT, Ignition Waveform] This should be part of every tune up on all vehicles that use cop ignition. Login to read more.

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