I neglected to mention that I did test the oil pressure sensor wire to ground and there was no change in the gauge. This was before I measured the pressure at 90PSI. The connecting wire itself is in good condition, no cracked insulation, etc.
The new sensor is the correct one. Motorcraft SW-8368.
Looking into the oil filler cap, the parts look fairly moist, but if they are moist enough, I'm not sure.
There is one other thing that I forgot to mention. Following the priming procedure in the video linked above, you have to use an oil filter with the back-flow valve disabled (I punctured it several times). When I got the 90 PSI reading, that filter was in the vehicle. After that, I swapped it out for a new filter, but never took a pressure reading with the new filter.
At this point, I think I'm going to remove the new sensor, prime the pump again, and take another pressure reading.
The new sensor is the correct one. Motorcraft SW-8368.
Looking into the oil filler cap, the parts look fairly moist, but if they are moist enough, I'm not sure.
There is one other thing that I forgot to mention. Following the priming procedure in the video linked above, you have to use an oil filter with the back-flow valve disabled (I punctured it several times). When I got the 90 PSI reading, that filter was in the vehicle. After that, I swapped it out for a new filter, but never took a pressure reading with the new filter.
At this point, I think I'm going to remove the new sensor, prime the pump again, and take another pressure reading.
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