2021 Ford F-350 SD power train problems
10 owner complaints filed with NHTSA name the power train on the 2021 Ford F-350 SD — 11% of all complaints for this model year.
What owners report
“Ongoing Fuel System Failures Related to Recall 24S78 – Request for Escalated Review To Whom It May Concern, My name is [XXX] , and I am the owner of two 2021 Ford F-350 6.7L Power Stroke Diesel trucks, both of which are affected by Recall 24S78 / NHTSA Campaign 24V957 concerning biodiesel deposit…”
filed May 25, 2025
“Ford knew there was an issue back in 2021 as they so filed with your agency. Yet waited. Then warranty claims continued. Now, four years later they file as a safety issue, BUT have told me twice in phone calls that I can drive the truck, despite it could shut down on it's own while driving. I tow…”
filed Jan 19, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Rear axle housing may not support the load of the pickup truck and deform, which could…Campaign 21V536000 · Jul 15, 2021
- Front wheel hub extenders may be improperly attached to the front rotor hub assemblies…Campaign 21V390000 · May 25, 2021
Related service bulletins
This bulletin supersedes 25-2549. Reason for update: To add 2020 model year chassis cab vehicles. Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator…
TSB 26-2216 · Service Bulletin/Repair Instructions · issued May 6, 2026This article supersedes TSB 24-2249 to update the claim quantity of the torque converter nuts, part number and claim quantity of the front support assembly bolt washers, and part number change of the fluid pan from the…
TSB 26-2088 · Service Bulletin/Repair Instructions · issued Mar 5, 2026For 2017 2026 vehicles equipped with a 10R transmission, a revision to the Road Testing Vehicle procedure has been made in the WSM, located in Section 307-01 > Diagnosis and Testing. This updated procedure improves the…
SSM 54592 · Service Bulletin/Repair Instructions · issued Feb 17, 2026
Power Train problems in other F-350 SD years
| Year | Reports | Share |
|---|---|---|
| 2024 F-350 SD | 6 | 14% |
| 2023 F-350 SD | 3 | 8% |
| 2022 F-350 SD | 13 | 12% |
| 2020 F-350 SD | 52 | 28% |
| 2019 F-350 SD | 9 | 2% |
| 2018 F-350 SD | 4 | 2% |
| 2017 F-350 SD | 23 | 4% |
| 2016 F-350 SD | 17 | 8% |
| 2015 F-350 SD | 16 | 8% |
| 2012 F-350 SD | 1 | 3% |
| 2011 F-350 SD | 4 | 9% |
| 2010 F-350 SD | 1 | 2% |
Other reported problem areas on the 2021 Ford F-350 SD
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.