There are 3 stored owner reports matching the fuel system leading-label group for the 2021 Ford F-350 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2021 Ford F-350 SD. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The contact stated that while driving 20 MPH, the message "Reduced Power" was displayed, and the check engine warning light was illuminated. The vehicle stalled and failed to restart. The vehicle was towed to a dealer and was diagnosed with failures of the CP4 fuel pump, cycloid filters, and contamination of the entire fuel system. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 30,000.
Vehicle went into limp mode and we towed it to the dealership. They ran diagnostics and found that the fuel filter was causing a fault for water in the fuel filter. They replaced the fuel filter and ran diagnostics again and it flagged failure for Low pressure fuel pump. They replaced the low pressure fuel pump and reran diagnostics. When they reran diagnostics it flagged for High pressure fuel pump failure and now they are in the process of tearing it down to the point of failure to find out the cause. My vehicles vin was not included in the original recall and believe that it should have been included.
The contact owns a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed, but the vehicle failed to accelerate as intended. The vehicle was driven to the shoulder of the road, where it lost motive power. The message "Reduced Engine Power" was displayed, and the check engine warning light was illuminated. The contact stated that the failure occurred while a fifth wheel RV was hitched to the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the high-pressure fuel pump had failed and needed to be replaced. The vehicle was not repaired. The contact was informed that the manufacturer denied covering the repair under NHTSA Campaign Number: 24V957000 (Fuel System, Diesel) due to a contaminated fuel system; however, the dealer confirmed that the fuel system was not contaminated. The dealer submitted information to the manufacturer advising that the fuel system was not contaminated. Additionally, a case was filed; however, the contact was denied coverage. The failure mileage was approximately 195,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Sep 3, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.