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2021 Ford F-750 problems

The most common problem on the 2021 Ford F-750 is engine and cooling. Its complaint count is close to a typical F-750 model year.

Typical yearClose to a typical year
Owner complaints
1
Recalls
3
Service bulletins
13
Worst area
Engine

The worst 2021 Ford F-750 problems

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

  • Engine
    1

Problems by type

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

  • Engine
    1

Recalls 3

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: automatic transmission: cooling unit and linesReported November 10, 2020 · 225 vehicles affected
What is wrong
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.
Risk
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.

Recall number 20V691000 · Recall details

See all 3 recalls for the 2021 Ford F-750

Defect investigations

Camshaft and Lifter Failure in Ford 7.3L Gasoline EnginesOpened October 23, 2026, still open

The Office of Defects Investigation (ODI) received a petition on June 13, 2026, requesting an investigation into camshaft and lifter failures in Ford 7.3L gasoline engines used in 2021-2022 Ford E-350 and 2021 Ford F59 and F-750 vehicles. The Petitioner alleges that insufficient oil lubrication at low idle (~6 psi) causes severe wear on lifter rollers and camshaft lobes, leading to catastrophic engine failure and sudden loss of motive power while driving at highway speeds with little to no warning. The petition further alleges that Ford Motor Company was aware of the root cause and released a software calibration patch raising idle speed to ~1,000 RPM, but failed to initiate a public safety recall or notify vehicle owners. The petition itself can be reviewed at under ODI number 11764421. This defect petition has been opened to evaluate the issue and determine whether to grant or deny the petition.

DP26011

Technical service bulletins for the 2021 Ford F-750 13

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

See all 13 bulletins for the 2021 Ford F-750

What 2021 Ford F-750 owners say

Most recent owner complaints, unedited.

Filed Apr 12, 2024 · Engine · NC

See attached document for complaint,

Compare the 2021 Ford F-750

Other model years

20012005200920112013201720212022

Questions about the 2021 Ford F-750

Is the 2021 Ford F-750 reliable?

Owners have filed 1 complaint about the 2021 Ford F-750, close to a typical F-750 model year.

What is the most common problem with the 2021 Ford F-750?

Engine and cooling, with 1 complaint.

How many recalls does the 2021 Ford F-750 have?

3 recalls, covering fuel system, diesel and power train.

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