2021 Ford F-650 Sd problems, complaints & recalls
Most-reported problem areas: Fuel System, Gasoline (1)
Safety recalls (1)
Structure:frame And Members:underbody Shields 2020-07-17 · campaign 20V413000 · 1,229 vehicles
Defect: Ford Motor Company (Ford) is recalling certain 2021 F-650 and F-750 trucks equipped with 7.3L gasoline engines. The underbody heat shield and other heat-protection components were not installed during assembly. Without these components, the interior cabin floor and seat attachments may reach elevated temperatures in certain driving conditions.
Risk: Skin contact with certain areas of the cabin interior floor or seat attachments in these high temperature conditions may cause injury.
Fix: Ford will notify owners, and dealers will install the missing underbody heat shield, thermal insulator patch, seat base covers, and seat bolt covers, free of charge. The recall began September 28, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S36.
Service bulletins (70)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-06-19 · TSB 26-2256 · Service Bulletin/Repair Instructions
this article supersedes tsb 25-2572 to update the parts list to correct the part number lc3z-6006-l to lc3z-6781-a, remove the flex plate bolts al3z-6379-ba from the parts list as these bolts are in kit lc3z-6781-a, update the claim quantity of the part number w709771-s440 to 9 pieces (f-650/f750-en
Engine 2026-03-20 · SSM 54678 · Service Bulletin/Repair Instructions
some 2021-2026 f-150 vehicles equipped with a 5.0l/5.2l engine, 2021-2025 f-super duty/f-53 motorhome/f59 commercial stripped chassis vehicles equipped with a 6.8l/7.3l engine and 2021-2025 e-series/f-650/f-750 vehicles equipped with a 7.3l engine may exhibit a rattle/scraping noise upon startup tha
Power Train 2025-11-26 · TSB 25-2572 · Service Bulletin/Repair Instructions
this article supersedes tsb 25-2322 to update the service procedure, labor operations and parts list. some of the vehicles listed in the model statement above may exhibit an upper engine ticking or tapping noise at idle. customers may also report experiencing rough engine performance, engine misfire
Unknown Or Other 2025-11-10 · SSM 54363 · Service Bulletin/Repair Instructions
some 2021-2025 expedition/navigator/f-150/f-super duty/f-53 motorhome/f59 commercial stripped chassis/f-650/f-750/transit vehicles equipped with a 2.7l/3.5l (non hybrid)/6.8l/7.3l engine and 2021-2026 e-series may exhibit a rattle/scraping noise from the bellhousing area on start-up. workshop manual
Power Train 2025-10-29 · SSM 54338 · Service Bulletin/Repair Instructions
some 2021-2025 f-150 vehicles equipped with a 5.0l/5.2l engine, 2021-2025 f-super duty/f-53 motorhome/f59 commercial stripped chassis vehicles equipped with a 6.8l/7.3l engine and 2021-2026 e-series/f-650/f-750 vehicles equipped with a 7.3l engine may exhibit a rattle/scraping noise upon startup tha
Engine 2025-10-04 · SSM 54269 · Service Bulletin/Repair Instructions
some 2021-2025 expedition/navigator/f-150/f-super duty/f-53 motorhome/f59 commercial stripped chassis/f-650/f-750/transit vehicles equipped with a 2.7l,3.5l ecoboost (non-hybrid), 3.5l cyclone, 6.8l or 7.3l engine, may exhibit a rattle/scraping noise from the bellhousing area on start-up. workshop m
Showing the 6 most recent of 70 bulletins. Search all of them free at nhtsa.gov.
What owners report
2023-07-20 · Fuel System, Gasoline · 30,000 mi · 🔥 fire“the contact works for a company that owned a 2021 ford f-650 sd commercial vehicle. the contact stated while driving 65 mph, he heard an abnormally loud popping sound coming from the rear of the vehicle. there was no warning light illuminated. the contact stated that he looked at the side view mirrors and saw black smoke and a reflection of flames…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.