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  1. Transmission overheating with less effort than expected.

    I have a 2021 PB with tow package and just went through a nightmare with my truck and transmission overheating! I posted on this forum and got a lot of good feedback from members. Bottom line is though every Ford technician and dealership I went to all said the same thing that I shouldn't have...
  2. 2021 Powerboost erratic shifting when highway towing

    Okay now that I am back home I have access to Forscan tools so I will see how to display the temp all the time. Normally it just moves the dial until it gets into danger zone then it displays the temp until it drops back down into the normal range. Your right it would be very useful to have it...
  3. 2021 Powerboost erratic shifting when highway towing

    Okay now that I am back home I have access to Forscan tools so I will see how to display the temp all the time. Normally it just moves the dial until it gets into danger zone then it displays the temp until it drops back down into the normal range. Your right it would be very useful to have it...
  4. 2021 Powerboost erratic shifting when highway towing

    As far a monitoring transmission temps outside the gauge on the truck I am not sure how you would do that unless I could access more info from the ODB2 port when I am driving?
  5. 2021 Powerboost erratic shifting when highway towing

    I definitely understand your questions and those would be the first thing that would come to my mind. First off the trailer is a 36 ft cougar travel trailer a little over 7000 lbs loaded so well under the truck specs. Also I did almost this exact same trip in the middle of last summer with...
  6. 2021 Powerboost erratic shifting when highway towing

    The Saga continues after 12 days at the dealer in Idaho Falls and a complete new transmission assembly as well as both axles replaced as per the recall as the RH axle bolt was broken. Anyway I got a call Friday AM stating the truck was ready to go and had been road tested etc so I drove 10...
  7. 2021 Powerboost erratic shifting when highway towing

    The thing that really concerns me is that Ford dealerships don’t seem to be able to repair these transmissions when they have problems like mine. On a number of very similar threads the customers ended up with a new transmission after months and multiple visits like I did. I also only have a...
  8. 2021 Powerboost erratic shifting when highway towing

    Update the Ford dealership got back to me and after reviewing the history of the transmission problems and talking to Ford they are going to replace the complete transmission. In addition they found the Wheel End hub bolt had broken and now need to replace the rear axle too. Not sure how I...
  9. 2021 Powerboost erratic shifting when highway towing

    Not sure after my transmission hard shifting report (secondr trip to dealer) the dealership referred to TSB-23-2351 and updated the OD transmission solenoid strategy. He told me that after thst update it could take several hundred miles to “relearn the shift points” as he described them. I...
  10. 2021 Powerboost erratic shifting when highway towing

    Okay my worst fears have happened. We started heading back home and only made it about an hour or so into the trip and the shifting problem started up. Then going up a slight grade at about 65 the transmission temp relined at 133C. I immediately pulled over and the temp went back down. I...
  11. Powerboost Transmission shifting is slipping

    I have an update on my situation I left yesterday on my trek back home and sure enough not even an hour into my trip pulling my trailer the transmission started it’s lurching and shifting problem. In addition the transmission suddenly started to overheat and went into the red flashing and...
  12. 2021 Powerboost erratic shifting when highway towing

    I will try the camera on our next trip later this week. I understand that since it only happens when towing its hard to diagnose and there are no error codes. I just went on a six hour trip with just the truck and it ran fine no problems at all.
  13. 2021 Powerboost erratic shifting when highway towing

    Sorry Typo around 1800 RPM depending on highway speed of course. The temps are all good. I have tried normal and tow/trailer mode. It jumps by 1500 RPM or more easy and really jerks the truck. Very disconcerting.
  14. Powerboost Transmission shifting is slipping

    Just checking to see if you ever got any resolution to this shifting problem as I have exactly the same problem after getting the aux pump replaced. No errors just very erratic shifting at highways speeds.
  15. 2021 Powerboost erratic shifting when highway towing

    It’s an option but not a good one as I have my trailer all setup and it seems to take a little while before it happens almost like it has to warm up first. After I posted this I did see a similar one from last year but no resolution to the problem. Before this I never had any transmission...
  16. 2021 Powerboost erratic shifting when highway towing

    I recently had my auxiliary transmission pump changed after getting errors when towing my travel trailer. Now after the replacement the truck will start shifting very erratically when driving highway speeds 60 -75. It goes from 1200 to 3500 rpm and back again sometimes in less then a few...




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