2021 Ford F-550 Sd Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2021 Ford F-550 Sd, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Fuel system969.2%
- Engine215.4%
- Powertrain (other)17.7%
- Steering17.7%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
The contact owns a 2021 Ford F-550 SD. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The local dealer was contacted several times for more than a year, and the contact was advised that the part was not yet available and that the manufacturer had paused the recall campaign. The contact called the manufacturer and was advised that the part for the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure.
The contact owns a 2021 Ford F-550. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
Operator was driving a 2021 Ford F550 equipped with an Altec AT48M aerial upfit. As he was driving the operator noted that the check engine light came on and almost immediately followed by the message center displayed "Low Fuel Pressure" warning. As he was preparing to stop, he could see smoke coming out from under the hood of the truck. As he exited the cab, he could see smoke and flames coming out of the truck.
While driving down the road at approximately 45 mph, under normal conditions, with no warning indicators the low fuel pressure light came on. When the driver stopped the vehicle he lost all power and observed smoke emanating from the underside and hood of the vehicle. Prior to him exiting the vehicle he observed flames shooting out from under the console towards his feet. Upon exiting the vehicle I saw flames under the hood of the vehicle and utilized his supplied fire extinguisher to attempt to put the fire out. This was futile and to our benefit he had a pressure washer and 119 gallons of water that he was able to put into action to subdue the fire. Noting that the drivers side front fender melted off and a hole melted in the drivers side hood from the fire. The entire engine compartment was burned as well as melted components and plastic in the passenger compartment of the vehicle from the fire.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
The contact owns a 2021 Ford F-550 SD. The contact stated that while his son was driving at unknown speeds and making a right turn, there was an abnormal sound coming from the vehicle. The contact stated that the driver’s side rear dual wheel axle had fractured inside the differential housing. The contact stated that the axle shaft had fractured. The contact stated that the wheels were still connected to the hub and the vehicle lowered to the ground. There were no warning lights illuminated. Additionally, there was differential fluid still in the axle housing. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 101,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
While driving and getting off the freeway at approximately 55 PMH truck when into a violent death wobble and had to slam on the brakes and come to a complete stop before it started. Truck has 36,384 miles on it and all front end steering is tight with no play, steering stabilizer was replaced with an aftermarket due to Ford's is an National back order and not known when will be available and Ford told me that this is not covered under warranty or any recall even though there are 5100 of them on back order! I am a 35 year ASE Master Mechanic with a Bachelor Degree is Diesel Power Technology and run a companies fleet of over 40 trucks, we have our own shop and inspected this truck ourselves and repaired.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .