One problem related to automatic transmission control module has been reported for the 2021 Ford F-250. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Ford F-250 based on all problems reported for the 2021 F-250.
Hi. I took my 2021 f250 6,7 to the Ford dealership as it was having trouble starting, and just wasn’t running great. They changed the batteries, and told me it was a nox sensor. So I went and got my truck to fix the sensors myself; because they wanted to charge me close to 3 grand. The next day I got up, lo and behold it wouldn’t crank. I had to have it towed back to the dealership. I tested codes before I had it towed, and took a video of it not cranking. The following codes showed. P2291 pcm - injector ctrl press too low - engine cranking p2209 pcm - nox sens heater sense circ range/perf bank 1 sens 1 u029d pcm - lost comm with nox sensor a p2535 pcm - ignition switch on/start pos circ high u300a bcm - ignition switch it’s been in the shop a week , they called Friday saying it was starting, and there was nothing wrong with it. So I replied with all the codes, and told them there was definitely something going on. So they checked it again Monday and it wouldn’t start. Now today (Aug 5 tues. ) they say it may have a vacuum leak. Although non of the codes point to vacuum leak. I have no idea what to do now.
| Power Train problems | |
| Differential Unit problems | |
| Automatic Transmission Control Module problems |