Owner-reported complaints naming the fuel system system, filed with NHTSA
Data refreshed
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks. Every record below is an owner-reported complaint about the 2020 Ford F-350 Sd submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 46 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 46, in the owner's own words
1. High Pressure Fuel Pump 2. All safety is good 3. It has been taken to the dealership and blaming it on the water separator (water/rust in fuel) The codes thrown are towards the High Pressure Fuel Pump 4. No there were no warning lights or messages prior to the failure. 5. Dealership did not provide the inspection report
The contact owns a 2020 Ford F-350. The contact stated that while driving 65 MPH and towing a dump trailer, the vehicle entered LIMP Mode. The contact was able to pull over to the side of the road. The vehicle was towed to the contact's storage yard, where an independent diesel mechanic performed a diagnostic scan and retrieved diagnostic trouble codes indicating a fuel system failure. The vehicle was towed to a dealer, where it was disassembled and diagnosed with a CP4 pump failure resulting from a water separator failure. The contact was informed that the CP4 pump replacement was not covered and needed to be replaced at the owner's expense. The manufacturer was notified of the failure and contacted the dealer, but no further assistance or information was available. The vehicle was not repaired. The failure mileage was approximately 180,000.
The contact owns a 2020 Ford F-350. The contact received a notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealers were contacted; however, the parts were on back order until late September. Another local dealer was contacted (Kendall Ford of Anchorage|1950 Gambell St, Anchorage, AK 99501); however, the distance was far to great in a remote area. 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.
The contact owns a 2020 FORD F-350. The contact stated while driving at an undisclosed speed, he had a loss of motive power and check engine warning light was illuminated when driving, almost causing an accident due to not being able to accelerate. The vehicle was taken to a dealer where it was diagnosed to have metal shavings in the combustion system. The contact received notification of NHTSA Campaign Number: 24V957000 (FUEL SYSTEM, DIESEL); however, the SSSC (Special Service Center assistance request) was declined by Ford agency (SSSC), due to the issue not having metal shavings although the dealer technician stated there were shavings. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 126,136.
The component/system that failed or malfunctioned is the SCR (Selective Catalytic Reduction) NOx Catalyst Efficiency system, triggering DTC P20EE – SCR NOx Catalyst Efficiency Below Threshold (Bank 1). This issue began immediately after Ford Recall 24S78 (PCM software update) was performed on April 29, 2026 at Ferman Ford of Countryside. The truck had zero emissions or check-engine issues prior to the recall flash and was perfectly maintained to Ford standards with Howes diesel treatment every tank. The problem has been reproduced and confirmed multiple times by the dealer: After the May 4 PCM reprogram per TSB 21-2248 After replacement of both NOx sensors on May 5 (code returned in under 17 miles) After replacement of the DEF injector (code returned again) The dealer only performed one manual DPF regeneration instead of the two required by Ford SSM 49202 and pinpoint test RD15, and they did not complete the SCR Parameter Reset. They are now quoting an additional ~$2,000 out-of-pocket for a DPF replacement after partial goodwill assistance was approved. The vehicle has been repeatedly inspected and repaired by Ferman Ford. No independent inspection yet. Ford Customer Service has been contacted and partial goodwill was approved, but significant out-of-pocket costs remain. Warning lamps/messages (Service Engine Soon light + “exhaust emission control system is not operating as expected”) first appeared immediately after the April 29 recall PCM flash and have continued ever since. Safety risk: A loss of motive power, entry into limp mode, or reduced power while driving could result in a crash or inability to maintain highway speed. This appears to be a direct consequence of the Recall 24S78 PCM software update tightening emissions monitoring. All repair orders, photos of warnings, and supporting documents are attached for your review. There is 12. I was not able to upload the last of the documents.
The contact owns a 2020 Ford F-350. The contact received notifications of NHTSA Campaign Numbers: 24V957000 (Fuel System, Diesel), 25V626000 (Steering), and 25V686000 (Back Over Prevention); however, the parts for two of the recall repairs were not yet available. The local dealer was made aware of the recalls and confirmed that parts for two of the recalls were not yet available; however, parts for the steering column recall were available. The vehicle was taken to the dealer, where it remained for two months. The contact was then informed that parts to repair the vehicle were unavailable, and the contact was informed to retrieve the vehicle. 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 and provided the same information as the dealer. The contact had not experienced a failure.
The contact owns a 2020 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (FUEL SYSTEM, DIESEL); however, the part to do the recall repair was not yet available. The local dealer was contacted, and it was confirmed that part was not yet available. 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 the failure.
The contact owns a 2020 Ford F-350. The contact stated that while driving at 70 MPH, the vehicle went into LIMP Mode and unintendedly decelerated and shut off. The vehicle was towed to the residence, and a dealer was contacted. The contact associated the failure with NHTSA Campaign Number: 24V957000 (FUEL SYSTEM, DIESEL). The vehicle was towed to the dealer, and the contact was informed that the CP4 high-pressure fuel pump needed to be replaced. The engine was repaired, and the vehicle was repaired. The manufacturer was notified of the failure and informed the contact that the recall was on pause. The failure mileage was 270,000.
The contact owns a 2020 Ford F-350. The contact received notifications of NHTSA Campaign Numbers: 24V957000 (FUEL SYSTEM, DIESEL) and 25V686000 (BACK OVER PREVENTION); however, the part to do the recall repair was not yet available. The contact received a letter from the manufacturer stating that parts for NHTSA Campaign Numbers: 24V957000 (FUEL SYSTEM, DIESEL), were available. The vehicle was taken to the dealer, where the contact was informed that while the software was being downloaded, the software update failed several times. The failure had occurred on several vehicles, and the dealer showed the contact that the service program update sent by the manufacturer to "Pause" and not to attempt any repairs starting February 02, 2026, until further notice. The vehicle was not repaired. 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, and a case was filed. The contact had not experienced a failure.
A component has not yet failed but an existing recall (Ford recall 24S78 / NHTSA ID 24V957) describes the potential for loss of motive power increasing the risk of a crash. This recall was issued in December of 2024. I received a notice in January of 2026 that the repair was available, went to my local dealer and was told the recall had been paused on 02/03/2026 - no actual repair is currently available. I live full-time in my 2021, 20,000 lb., 5th-wheel RV and frequently tow it with no other option than my 2020 F350 with the open recall. To quote the recall document, "Ford has not issued instructions to stop driving your vehicle under this safety recall" but a loss of motive power is exponentially worse when towing a large load which is what this vehicle was purpose-built to do.
The contact owns a 2020 Ford F-350. The contact stated that while driving at an undisclosed speed, the engine power failure warning light illuminated, and the engine seized. The contact stated that the failure had occurred while towing a small vehicle. The contact coasted the vehicle to the shoulder of the road, which was very unsafe. The contact stated that while attempting to restart the vehicle, the vehicle failed to restart. The vehicle was towed to an independent mechanic, where it was diagnosed with high-pressure fuel pump failure, cylinder rod and head gasket failures. The contact was informed that the high-pressure fuel pump had exploded and sent fuel all over and into the engine. The contact was informed that the engine had failed due to a high-pressure fuel pump failure. The contact was advised to tow the vehicle to the dealer. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, parts for the recall repair were unavailable. The manufacturer was made aware of the failure, and a case was filed. The contact was advised to contact the dealer to schedule a diagnostic test. The failure mileage was approximately 138,527.
The contact owns a 2020 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part for the recall repair was not available. The contact stated that parts were still not available for approximately one year. The contact stated it should not take the manufacturer that long to write a new software program. In addition, the contact stated that the vehicle was purchased and used for recreational purposes. The dealer was contacted several times. The contact stated that on the last conversation with the dealer, the contact was informed that parts should be available in several months; however, parts were still unavailable. The manufacturer was contacted. The contact had not experienced a failure.
The contact owns a 2020 Ford F-350. The contact stated that while driving approximately 55 MPH, the vehicle stalled. The contact stated that there was no warning light illuminated. The contact was able to pull over but was unable to restart the vehicle. The vehicle was towed to a local dealer, where it was diagnosed, and it was determined that the diesel fuel system needed to be replaced. The vehicle was repaired and was covered under warranty. The contact stated that one month later, the vehicle experienced a failure while he was driving. The vehicle was towed to the same dealer, who determined that the diesel fuel system had failed. The contact was advised that the vehicle was no longer covered under warranty and would be repaired out of pocket. The contact had the vehicle towed to a diesel repair shop. The contact stated that the repair shop replaced the diesel fuel system, and the vehicle was repaired. The contact stated that in January of 2025, notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel) was received. The contact called the manufacturer and was referred to the dealer for assistance. The failure mileage was approximately 47,000.
The contact owns a 2020 Ford F-350. The contact received notifications of NHTSA Campaign Numbers: 24V957000 (FUEL SYSTEM, DIESEL), 25V626000 (STEERING), and 25V686000 (BACK OVER PREVENTION); however, the parts to do the recall repairs were not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.
The contact owns a 2020 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The contact stated that while the vehicle was stopped on the side of the road and idling, the engine made a chirping sound and then shut off. No warning light was illuminated. The vehicle was towed to the dealer, who determined that the high-pressure fuel pump had failed. The contact was informed that the vehicle was not covered under the recall due to the mileage exceeding the warranty coverage. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 130,000.
The contact owns a 2020 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (FUEL SYSTEM, DIESEL); however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part was not yet available. 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 stated that the vehicle had experienced the failure listed in the recall, causing the check engine warning light and “WRENCH” icon to illuminate. The vehicle was not repaired. The failure mileage was 49,000.
I have sent in a previous complaint as our truck would die in the middle of the road, due to the fuel pump. It is unacceptable that Ford has not resolved the recall issue in 9 months. Our truck is needed daily for our business. Please make Ford take action.
When exiting the interstate and coming to a complete stop at the bottom of the exit ramp we went to make a right turn onto a two lane mountain road when we felt a hesitation and within seconds the engine began to sputter, we lost power and the check engine light came on. This was a two lane 55MPH road with no shoulder pull off. Thankfully there was no oncoming traffic in the other lane and there was also an abandoned fruit stand parking lot which were were able to drift across the road and stop in. We experienced a COMPLETE loss of power. Had there been oncoming traffic or no open parking lot just across the road we might have experiened a crash. It is important to note that we were on a vacation in the mountains and thankfully our RV was parked at the Campground we were not towing it at this time. We had to find a tow service to have the vehicle towed to the nearest Ford Dealership in the area. The Dealership notified us that there were metal shavings/flakes in the lower fuel filter housing. They told us that this was a Complete Fuel System Failure and that we would need a complete fuel system replacement of all parts. We had been notified of the recall (Safety Recall Notice 24S78/NHTSA Recall 24V957) in January 2025 and we had taken it to the local Ford Dealership who advised there was no fix for the problem at this time. The Dealership that our truck was towed to after this incident advised us that we would have to pay for all the repair costs (excess of $10,000) as this was still an open recall. We feel that this is a MAJOR safety issue - we were due to leave for home the following morning where we would have been towing a 7500lbs travel trailer on the interstate roads. Had we experienced this failure then it could have been truley tragic for not only us but other motorists. After this incident we called Ford Motor Company and advised them and they told us it was still considered an open recall with no fix available.
The contact owns a 2020 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The contact stated that upon contacting several dealers, including the local dealer, the dealers informed the contact that the recall part was not yet available. The contact was concerned for her safety while driving the vehicle. The manufacturer was contacted and confirmed that the part was not yet available. The contact had not experienced a failure.
The contact's husband owns a 2020 Ford F-350. The contact stated that while her husband was driving at unknown highway speeds, the vehicle stalled without warning. The vehicle was towed to a dealer, where it was diagnosed with a high-pressure fuel pump failure. The contact was informed that part to do the repair was on backorder, and the vehicle was towed back to the contact's residence. The contact then received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. Several local dealers were contacted and each dealer stated that the parts were unavailable. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was unknown.
The contact owns a 2020 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000(Fuel System, Diesel); however, the part to do the repair was not yet available. The contact stated that while driving at approximately 65 MPH, the vehicle stalled. There was no warning light illuminated. The contact was able to coast to the side of the highway road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed and determined that the fuel pump had failed, causing debris to spread in the fuel system. The dealer determined that the fuel pump and the fuel system needed to be replaced. The engine was also inspected for damage. The vehicle was repaired. Upon receiving the recall notification, the manufacturer was contacted for reimbursement; however, the manufacturer advised the contact that reimbursement would be provided once the recall remedy became available. The failure mileage was approximately 150,000. VIN tool confirms parts not available.
The contact owns a 2020 Ford F-350 The contact stated while driving 25 MPH, the vehicle was quiet, and the vehicle lost power independently. No warning light was illuminated. The contact pulled over to the right side of the road while waiting for tow assistance. An Independent mechanic was contacted. The vehicle was towed to an independent mechanic and the contact was informed that the fuel pump was damaged and needed to be replaced. The vehicle was repaired. The contact related the failure to NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The manufacturer was notified of the recall and informed the contact that parts for the NHTSA Campaign Number: 24V957000 (Fuel System, Diesel) was not yet available. 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 failure mileage was 124,000. VIN tool confirms part not available.
The contact owns a 2020 Ford F-350 used for hauling a 24-foot trailer. The contact stated that while driving 40 MPH, the vehicle stalled. While driving and approaching a stop, the vehicle stalled. The vehicle restarted on one occasion. The reduced power mode message was displayed. There were no warning lights illuminated. The vehicle was taken to an independent mechanic who determined the failure was due to the high-pressure fuel pump. The vehicle was repaired. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and informed about NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The failure mileage was approximately 56,000.
The contact owns a 2020 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (FUEL SYSTEM, DIESEL); however, the part to do the recall repair was not yet available. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. No warning light was illuminated. The contact stated that the failure persisted. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was unknown. VIN tool confirms parts not available.
The contact owns a 2020 Ford F-350. The contact stated that while driving and approaching a stop, the vehicle lost motive power, the brake pedal depressed and went to the floorboard, and the vehicle rolled into the intersection. There were no warning lights illuminated. The vehicle was towed to the local dealer, where it was diagnosed and determined that the fuel pump had disintegrated and there was metal in the fuel system. The vehicle was not repaired. The manufacturer was contacted, but no additional assistance was provided. The approximate failure mileage was 106,000.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
Data on this page last refreshed .