2021 Ford F-350 Super Duty: Fuel System complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 25 owner complaints for the 2021 Ford F-350 Super Duty that list the fuel system component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11723788 (filed 03/12/2026): “The contact owns a 2021 ford f-350. the contact received notification of nhtsa campaign number: 24v957000 (fuel system, diesel). the contact recently set an appointment with a local dealer for the software update, but was informed by the dealer that the recall had been placed on hold. the contact st…”
- NHTSA complaint ODI #11719967 (filed 02/23/2026): “The contact owns a 2021 ford f-350. the contact received notifications of nhtsa campaign numbers: 25v686000 (back over prevention) and 24v957000 (fuel system, diesel); however, the parts to do the recall repairs were not yet available. the contact stated that while driving at an undisclosed speed, t…”
- NHTSA complaint ODI #11720003 (filed 02/23/2026): “The contact owns a 2021 ford f-350. the contact stated that while driving approximately 65 mph, the vehicle lost automotive power. the low power mode warning light was illuminated. the contact received notification of nhtsa campaign number: 24v957000 (fuel system, diesel); however, the part to do th…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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