IllustrationThe driver reported an intermittent burnt oil smell from rear of truck. We found the axle leaking gear oil, with gear oil soaking the brake pads and pooling in the wheel. Took to Ford dealer, where it was confirmed by the dealer and repaired under warranty.
2021 Ford F-650
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all F-650 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 4 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Diesel. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
Service Brakes complaints
2 reportsThe contact owns a 2021 Ford F-650. The contact stated while releasing the brake pedal and driving from a complete stop, the brake pedal made abnormal sounds. The contact also stated that the parking brake was not operative. The vehicle was taken to the dealer who diagnosed that no issues were found regarding the brake pedal and…
Read full complaint
The contact owns a 2021 Ford F-650. The contact stated while releasing the brake pedal and driving from a complete stop, the brake pedal made abnormal sounds. The contact also stated that the parking brake was not operative. The vehicle was taken to the dealer who diagnosed that no issues were found regarding the brake pedal and the abnormal sounds. However, the parking brake was repaired. The contact stated that the brake pedal continued to make abnormal sounds while driving from a complete stop. The ABS and traction control warning lights were illuminated. The vehicle was taken to the dealer where the ABS and the traction control sensors were replaced on the rear passenger’s side of the vehicle; however, the failure persisted. The dealer then replaced the master cylinder however, the brake pedal continued to make abnormal sounds while driving from a complete stop. Additionally, the contact stated that he smelled a burning odor coming from the rear passenger's side of the vehicle. The vehicle was taken to the dealer where it was diagnosed that the brake caliper needed to be replaced; however, the parts for repair were not available. The manufacturer was notified of the failure and advised that the parts were not available. The vehicle was not repaired. The failure mileage was approximately 5,700.
Official recalls
324V957000 · Fuel System, Diesel:delivery:fuel Pump
Dec 20, 2024
Ford Motor Company (Ford) is recalling certain 2020-2022 F-Super Duty F250, F350, F450, F550, F600, and 2021-2022 F-650, F750 vehicles. Biodiesel deposits may form on the pump drivetrain roller components, which could lead to failure of the high pressure fuel pump.
Consequence & remedy
Consequence: High pressure fuel pump failure can cause a loss of drive power, increasing the risk of a crash.
Remedy: Dealers will update the powertrain control module (PCM) and Transmission Control Module (TCM) software, free of charge. Owner notification letters were mailed January 23, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 24S78.
22V013000 · Fuel System, Diesel
Jan 14, 2022
Ford Motor Company (Ford) is recalling certain 2021 Super Duty F-250, F-350, F-450, F-550, F-600, and Medium Duty F-650 and F-750 vehicles equipped with 6.7L diesel engines. A small void may be present in the top-center of the vehicle's underhood secondary fuel filter cap, which may progress to a pinhole over time, allowing fuel to leak from the top of the secondary fuel filter.
Consequence & remedy
Consequence: A fuel leak in the presence of an ignition source can increase the risk of a fire or injury.
Remedy: Dealers will replace the primary and secondary fuel filters, free of charge. Owner notification letters were mailed January 28, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S01.
20V691000 · Power Train:automatic Transmission:cooling Unit And Lines
Nov 10, 2020
Ford Motor Company (Ford) is recalling certain 2021 F-650 and F-750 vehicles equipped with 7.3L gas engines. The transmission oil cooler line may contact the air conditioning compressor pulley, possibly causing a transmission fluid leak.
Consequence & remedy
Consequence: Leaking transmission fluid may contact hot engine components, increasing the risk of an engine compartment fire.
Remedy: Ford will notify owners, and dealers will inspect transmission oil cooler lines for proper orientation and damage, correcting the lines and replacing any that are damaged, free of charge. The recall began December 21, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S66.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.