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transmission issue

  1. 10-Speed Automatic Transmission (10R80)

    Please chime-in if you have a 10-speed automatic or have direct knowledge about this issue. Any "whining" sounds? Low, moderate, loud? My brand-new 2023 has this "whining" sound at a moderate level. Sound is there in the morning, afternoon, evening, etc. Cold start, warm start, etc. Most...

  2. Sports Mode Not Working Properly

    I have a 2014 Mustang with CVT transmission. I usually put it in srots mode so I can shift. Recentlly, it stopped letting me downshift thought shifitng up isn ot a problem. Not sure what the problem is. Has anyone epxerienced this and what is the resolution?

  3. 2019 10R80 GT - Sticking throttle/acceleration at low speeds?

    Hi there everyone, I'm hoping you can help me diagnose an issue I'm having. So far 3 dealers I've taken the car to haven't been able to replicate the issue, but it's certainly there. My car will periodically continue to accelerate on its own. It's always at low speeds, and happens exclusively...

  4. 2016 mustang GT transmission stuck at redline

    Hello all, I have a 2016 Mustang GT (California special) with the automatic transmission. Last night, when I was at a stoplight, I put it in S from the shifter and gave it about 20% throttle, then midway at about 4k RPM, I went WOT (still in 1st gear). The RPM went all the way up to past 7K...

  5. 6r80 stalling like it's a manual

    Let me preface this with my mechanical knowledge only extends to minor bolt ons installing brakes/ lowering springs etc.. So rather lost on this one. The car first started showing transmission problems yesterday on the way home when it started slipping in 2nd and 3rd gear. Parked the car and...

  6. 2018 GT MT Weird High Pitched Noise

    Greetings, My car is a 2018 Mustang GT with the MT, 15K miles. I have this high pitched noise that I usually hear once the car is warmed up. It's not a whine, but more like a continuous chirp. I believe it occurs regardless of which gear am on, but its more evident on 3rd and 5th. It is more...

  7. Black substance on Auto Trans mount

    Hello all, Recently purchased a lightly used 2016 Mustang GT/CS (auto with 19k miles). Upon purchasing the car, I went to my mechanic to check to see if there are any visible issues with the car's underbody. Apparently, we found some kind of black substance on the transmission mount. Doesn't...


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