06 f-150 5.4 with cop coils …where does power come from there is no fuses blown but no 12 volts to coils


Asked by Dec 05, 2013 at 10:28 PM about the 2006 Ford F-150

Question type: Maintenance & Repair

1 Answer

Tracy Hooks

The PCM supplies power to the individual coils. There is a PCM Power Relay and fuse. You won't see power to the coils unless the engine is being cranked or is running. A signal is required from the Crank sensor to tell the PCM when to fire which coil.

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