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What 16 owners told NHTSA about the 2020 Ford F-550

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (16)Crash / fire / injury (1)Fuel System, Diesel (5)Engine (3)Suspension (3)Transmission & drivetrain (3)Body & structure (2)Fuel system (2)Brakes (1)Electrical system (1)Visibility & wipers (1)

2 of 16 complaints match · Fuel system · clear filters

Apr 11, 2026Fuel systemFire

I had my truck serviced, engine oil and fuel filters replaced, I picked up truck and while driving home, engine loss of power came on screen, truck then stalled, I observed smoke coming from under the hood, I exited vehicle to try and open hood, but flames were already present, I called 911 fire department came and put fire out. truck is a total loss. Fire Capt observed that fire seem to have started near the fuel filter housing, I was fortunate to escape the cab along with my dog, I have read several reports about filter housing leaking and starting fires, my brother inlaw, actually had the same issue, filter split causing fuel to leak, but fortunately he had just started the truck and was not driving very long before he smelled the fuel and was able to shut down the engine before it got hot and repolace the faulty filter housing.

NHTSA ODI 11730539

Apr 30, 2025EngineFuel system

There was a recall on this veh. over a year ago and they still do not have the parts to repair it. My fuel milage went from 13.8 down to 9.6 and still going down. I have called Ford about this and they say they are still waiting on parts. I reminded them it has been over a year now and should have had the parts in a long time ago.

NHTSA ODI 11657747

Working with the data? Download all 16 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2020 Ford F-550 verdict →