I have a 2011 Ford Fusion with the 6 speed trans.
How do I replace the transmission temp sensor? I'm throwing code p1783.
Engine: 3.0L. Transmission 6 speed semi automatic. Miles ~115k; Bought @ 53k. Had regular transmission flushes since then. Last one late 2015 @ maybe 70k. Have never replaced engine coolant but most mechanics have told me they don't even do that.
Symptoms: Wrench light comes on after 15 - 30mins of highway driving at speeds of 80mph or greater (totally okay on Chicago freeways).
When wrench light is on, fan up front is loud (notice it off hwy) and the throttle is touchy and seems to loose power. Touchy to the extent of it feeling like its slamming into a brick wall that isn't there (at times it's this bad).
I haven't checked the actual level but the fluid is red and doesn't smell burnt. I'd assume I'd be out of tranny fluid if it was leaking due to this being an ongoing issue since JAN 2016.
After 3 miles of off hwy driving, light comes off throttle acts fine, fan revs down. No codes are stored after the fact and the code has to be caught with the light on. I have a bluetooth odb I pulled it from.
Consulted with several people. The only two suggestions I get are vacuum leak and temp sensor.