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2021 Ford F-600 SD problems

The most common problem on the 2021 Ford F-600 SD is fuel and propulsion system. It has 2.0 times the complaints of a typical F-600 SD model year.

Typical year2.0x the typical complaints
Owner complaints
2
Recalls
5
Service bulletins
34
Worst area
Fuel system

The worst 2021 Ford F-600 SD problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Fuel system
    2

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Fuel system
    2

Recalls 5

Fuel system, diesel: delivery: fuel pumpReported March 17, 2026 · 9,839 vehicles affected
What is wrong
Ford Motor Company (Ford) is recalling certain 2020-2022 F-Super Duty F250, F350, F450, F550, 2021-2022 F600, and 2022 F750 vehicles previously repaired incorrectly under recall number 24V957. Biodiesel deposits may form on the pump drivetrain roller components, which could lead to failure of the high pressure fuel pump.
Risk
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) software, free of charge. Owner notification letters were mailed mailed April 7, 2026. Owners may contact Ford customer service at 1‑866‑436‑7332. Ford's number for this recall is 26S17. Vehicle Identification Numbers (VINs) involved in this recall became searchable on on March 18, 2026.

Recall number 26V158000 · Recall details

Back over prevention: sensing system: cameraReported January 31, 2025 · 91,580 vehicles affected
What is wrong
Ford Motor Company (Ford) is recalling certain 2021 Expedition, 2021-2022 Super Duty F-250, F-350, F-450, F-550, F-600, and 2020-2022 Lincoln Corsair vehicles. The rearview camera may display a blank or distorted image.
Risk
Rearview camera failure can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.
Remedy
Dealers will replace the rearview camera as necessary, free of charge. Owner notification letters were mailed September 18, 2025. Owners may contact Ford customer service at 1‑866‑436‑7332. Ford's number for this recall is 25S05.

Recall number 25V048000 · Recall details

Fuel system, diesel: delivery: fuel pumpReported December 20, 2024 · 295,449 vehicles affected
What is wrong
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.
Risk
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.

Recall number 24V957000 · Recall details

Fuel system, dieselReported January 14, 2022 · 19,697 vehicles affected
What is wrong
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.
Risk
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.

Recall number 22V013000 · Recall details

Power train: axle hubsReported May 25, 2021 · 17,616 vehicles affected
What is wrong
Ford Motor Company (Ford) is recalling certain 2021 F-350, F-450, F-550, and F-600 vehicles equipped with dual rear wheels and front wheel hub extenders. The front wheel hub extenders may be improperly attached to the front rotor hub assemblies, which could result in separation of the wheels and wheel extenders from the vehicle.
Risk
A detached wheel and wheel extender can increase the risk of a crash.
Remedy
Owners are instructed not to drive their vehicles until the torque of the wheel extender nuts can be verified. Dealers will inspect and tighten the front wheel hub extender nuts, free of charge. Owner notification letters were mailed on June 18, 2021. Owners may contact Ford customer service at 1‑866‑436‑7332. Ford's number for this recall is 21S26.

Recall number 21V390000 · Recall details

See all 5 recalls for the 2021 Ford F-600 SD

Technical service bulletins for the 2021 Ford F-600 SD 34

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 34 bulletins for the 2021 Ford F-600 SD

What 2021 Ford F-600 SD owners say

Most recent owner complaints, unedited.

Filed Feb 6, 2026 · Fuel system · CA

The contact owns a 2021 Ford F-600 SD. The contact received notification of the federal safety agency Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealer was contacted, and the contact was advised that the repairs could cause more failures and that the recall repair could not be performed. 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.

Filed Jan 7, 2026 · Fuel system · IL

I am filing a complaint against Ford Motor Company regarding a known defect in my 2021 Ford F-600 truck that resulted in a catastrophic fuel system failure. The truck has only 110,000 miles and has been maintained appropriately. It is registered in the State of Illinois and is used for my woman-owned small business. A few weeks ago, the vehicle began running roughly. When the dealer inspected it, they reported that the entire fuel system was contaminated with metal and required complete replacement at a cost of $14,500. I later discovered that Ford has a documented history of CP4 fuel pump failures on 2020–2022 Super Duty trucks, including the F-600, which cause metal contamination throughout the fuel system. Many owners have received goodwill or warranty assistance for this exact issue. I opened a case with Ford Customer Care (Case #[XXX]) and provided all documentation. Despite the clear evidence of a known defect and the severe financial hardship this caused, Ford refused to provide any assistance at all—not even covering the parts cost. I was forced to put the $14,500 repair on a credit card at 21% interest simply to keep my business functioning. This situation is financially devastating for a small, woman-owned Illinois business, and Ford’s refusal to offer goodwill assistance for a known defect is unfair and unreasonable. I am requesting help obtaining reimbursement or appropriate relief from Ford Motor Company. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Compare the 2021 Ford F-600 SD

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Questions about the 2021 Ford F-600 SD

Is the 2021 Ford F-600 SD reliable?

Owners have filed 2 complaints about the 2021 Ford F-600 SD, 2.0 times a typical F-600 SD model year.

What is the most common problem with the 2021 Ford F-600 SD?

Fuel and propulsion system, with 2 complaints.

How many recalls does the 2021 Ford F-600 SD have?

5 recalls, covering fuel system, diesel, back over prevention and power train.

Was there a recall on the 2021 Ford F-600 SD fuel system?

Yes, 3 recalls: 26V158000, 24V957000, 22V013000. Check your VIN to see if your car still needs the free repair.

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