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P0356 Diagnostic Trouble Code Discussion for April 2008

Ignition Coil 6 Primary/Secondary Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0356
Help Request Posted
2003 Ford Expedition XLT 5.4L Misfire, MIL Lamp on VIN: 1FMPV18L03
P0356: Ignition COP 6 Primary/Secondary Circuit Malfunction. trying to cover my rear. truck came in running fine but with mil on and complaint of occasional misfire. road tested fine but plugs were originals. tuned up but didnt see any obvious coil problems. noticed that misfire codes were all for last 4 plugs in firing...
April 24, 2008