2020 Ford F-350 Super Duty · symptom sheet
Diesel fuel system or injector problems
- 34owner reports
- 124,000median miles
- 0involved a crash
Newest report Aug 26, 2026 · checked Oct 2, 2026
34 of the 188 complaints on this car describe diesel fuel system, which makes it the most reported problem on the 2020 F-350 Super Duty.
Tick what matches of 34 reports
Diesel fuel system on other F-350 Super Duty years
No other F-350 Super Duty model year has enough reports of diesel fuel system for a sheet of its own. See every F-350 Super Duty year.
What this problem usually is
Diesel fuel system complaints have a pattern of their own. Many are waiting on a recall part that isn't available yet. Others describe the truck stalling or losing power, a fuel smell in the cab, trouble right after refueling, or a diesel particulate filter that keeps clogging. Injector replacement comes up often.
What got replaced
Owners who name the part that was replaced mention the fuel pump (14 reports).
Recalls and investigations
2 recalls on the fuel system cover the 2020 model year. A recall on the same system isn't always the same failure, so read the defect text.
Biodiesel deposits may form on the pump drivetrain roller components, which could lead to failure of the high pressure fuel pump.
Biodiesel deposits may form on the pump drivetrain roller components, which could lead to failure of the high pressure fuel pump.
All 16 recalls on the 2020 Ford F-350 Super Duty, with the owner complaints on each recalled system
NHTSA investigations into the fuel system on the F-350 Super Duty
Sogefi secondary diesel fuel filter leak. Open.
When it happens
The middle half of failures fell between 59,000 and 150,000 miles, from the 21 reports that gave a mileage.
What owners wrote
No report on this problem is short enough to quote in full.
Should you keep driving it?
This page can't tell you that. 0 of 34 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works