johnhimmel5
Taurus Transmission Problems
Summary of the thread
A 2014 Ford Taurus with automatic transmission issues was experiencing rough shifting, a transmission warning light, and emergency mode activation. The problem was suspected to be caused by worn-out transmission oil or possibly an electrical issue like undervoltage affecting the transmission control module. The suggested solution was to have a professional diagnostic check, which confirmed the worn-out oil and potential undervoltage issue. Replacing the transmission oil resolved the shifting problems.
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4 comment(s)
johnhimmel5 (community.author)
Interesting! I haven't noticed dimming lights, but the radio did act a little strange a couple of times. What exactly did undervoltage do to your transmission, and how did you fix it?
charles_miller2
I'm no mechanic, but undervoltage can cause the transmission control module to get wonky readings, leading to shifting problems. I didn't try to fix it myself; I took it straight to a workshop. They ran diagnostics and confirmed the undervoltage issue. They suggested replacing the oil and checking all electrical connections. Getting it checked out by a pro is probably your best bet.
johnhimmel5 (community.author)
Thanks a bunch for the advice! I took it to my mechanic, and you were spot on! It turned out that the transmission oil was completely worn out, likely due to undervoltage somewhere. They replaced the oil, and now it's shifting like new. The total cost was around 240€ I really appreciate the help!
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FORD
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TAURUS
charles_miller2
Sounds familiar! I had similar automatic transmission issues with my Ford Taurus: implausible shifting and the light coming on. I read that undervoltage in the car's electrical system can mess with the transmission's computer. Have you had any other electrical weirdness, like lights dimming or the radio cutting out?