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Re: 1999 Ford Expedition coil ramps
Posted to Technical Discussion Forum on 2/9/2001 3 Replies

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did you ohm the bad coils.? I am wondering if the coils are internally shorting or is the coolant adding some reisistance to the circuit. It would be nice to see a zoomed in ramp of the bad coil. In t... Login to read more.

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