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Ignition Switch RUN terminal wire R/LG always hot
A real mystery. My 1991 F350 7.3 IDI wouldn't turn off with the key, so I did the usual and pulled the FSS wire to kill it. I replaced the Ignition switch and checked the actuator rod. I checked voltages on the switch and found the RUN R/LG wire was hot. This wire is supposed to get voltage from...- Lawrence Koepke
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- fss ign ignition r/lg hot
- Replies: 26
- Forum: 6.9L IH & 7.3L IDI Diesels
