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2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

08 5.4: Resistance testing

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Old Apr 27, 2025 | 06:39 PM
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Default 08 5.4: Resistance testing

I checked the wires going to the transmission range sensor from the PCM, and here's what I got, in ohms.

TR1: 2.0
TR2: 1.2
TR3A: 1.5
TR4: 2.3

Are these good readings?

If so, what should I check next?

I'm having an issue where I only get the "Trans Fault" message in reverse, and the shift is harder than normal. Otherwise if I go to drive from park, once I hit 30mph, it'll act like it's in neutral. I've had P0705 and P1702 codes.
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