Repairing rodent damage to my F250 wiring harness
My F250 does not get driven much. Since it is primarily a tow vehicle, it spends most of its time parked in the woods with the trailers. This leaves it susceptible to rodent damage.
I got an oxygen sensor error code one day out of the blue. I began by testing the resistance of the heater circuit. It was in spec but on the high side. So I tracked down a Motorcraft sensor in the next town to the south and swapped it out.
The error code was still there. So I took a closer look at the wiring. That is when I noticed a chunk of insulation was missing right at the connector on the harness side.
