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You can try inspecting the harness with a wiggle test to see if there is an issue with a pin. Check for any corrosion too. The harness isn't dirt cheap but either is 7 qts of ATF and the hour dropping the pan.
I would include the upper section of harness to the PCM.
Mice and other rodents have been known to like the taste
of the Ford wiring. So get a good look about the trans between
the floor and the case. Look for any places what may be rubbing also.
So according to my brother in law, who is an ase master mechanic, if the sensor is good, and the wiring is good, my only other option is the pcm being bad. This sound terrible, as its $750 from the dealership already programmed. But if it doesn't fox the problem in going to be out a lot of money.
With all that said, I'm concerned that changing the pcm will affect my viper alarm based on a few forum posts I've read. Can anyone confirm this?
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