2021 Ford F-350 Sd Fuel system Problems

Vehicle went into limp mode and we towed it to the dealership. They ran diagnostics and found that the fuel filter was causing a fault for water in the fuel filter. They replaced the fuel filter and ran diagnostics again and it flagged failure for Low pressure fuel pump. They replaced the low pressure fuel pump and reran diagnostics. When they reran diagnostics it flagged for High pressure fuel pump failure and now they are in the process of tearing it down to the point of failure to find out the cause. My vehicles vin was not included in the original recall and believe that it should have been included.

NHTSA ID

11755333

Incident

Jul 24, 2026

The contact owns a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed, but the vehicle failed to accelerate as intended. The vehicle was driven to the shoulder of the road, where it lost motive power. The message "Reduced Engine Power" was displayed, and the check engine warning light was illuminated. The contact stated that the failure occurred while a fifth wheel RV was hitched to the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the high-pressure fuel pump had failed and needed to be replaced. The vehicle was not repaired. The contact was informed that the manufacturer denied covering the repair under NHTSA Campaign Number: 24V957000 (Fuel System, Diesel) due to a contaminated fuel system; however, the dealer confirmed that the fuel system was not contaminated. The dealer submitted information to the manufacturer advising that the fuel system was not contaminated. Additionally, a case was filed; however, the contact was denied coverage. The failure mileage was approximately 195,000.

NHTSA ID

11743498

Incident

Jun 5, 2026

Mileage

195,000 mi

Vehicle Safety Complaint – 2021 Ford F-350 I am submitting this complaint regarding a safety-related failure involving my 2021 Ford F-350. While driving under normal conditions, the vehicle suddenly entered “limp mode,” resulting in a significant and immediate loss of power. Approximately 20 miles later, the vehicle completely shut down, leaving me stranded and requiring the truck to be towed to Gene Messer Ford for diagnosis and repair. The failure created a potentially dangerous situation, as the loss of power limited my ability to maintain safe speeds and respond to surrounding traffic conditions. After the vehicle was delivered to the dealership, it took approximately one week for inspection and an additional two weeks to complete repairs. During the repair process, I was informed that newly installed components—including the fuel rail and two fuel injectors—were defective and required replacement again. This raises concerns about whether the root cause of the failure was properly identified and whether contamination or systemic failure within the fuel system was present. I am also aware of widely reported issues involving high-pressure fuel pump (HPFP) failures in Ford diesel engines, which can result in catastrophic damage to the entire fuel system, including injectors, fuel rails, and lines. Given the nature of my vehicle’s failure and the components involved, I am concerned that this incident may be related to a broader, known defect. This type of failure—sudden loss of power followed by complete shutdown—poses a serious safety risk, particularly if it occurs at highway speeds or in high-traffic conditions. I am requesting that this complaint be reviewed as part of a broader investigation into potential fuel system defects in Ford diesel trucks. I believe this issue may warrant further scrutiny and possible recall action to prevent similar incidents.

NHTSA ID

11735094

Incident

Apr 9, 2026

Repair remedy has not been addressed. Leaving the vehicle owners footing the bill when a fuel system problem arises. It's been since 2024 and FMC has not done anything about it. Dec 20,2024 Manufacturer Recall Number24S78 NHTSA Recall Number24V957 Recall StatusRecall Incomplete, remedy not yet available Summary YOUR VEHICLES HIGH-PRESSURE FUEL PUMP MAY FAIL, WHICH MAY RESULT IN EXTENDED CRANKING WITHOUT STARTING WHILE THE VEHICLE IS PARKED, ANDOR A LOSS OF MOTIVE POWER WHILE DRIVING. PRIOR TO LOSS OF MOTIVE POWER YOU MAY EXPERIENCE A CHECK ENGINE LIGHT, NOISE, ANDOR REDUCED ENGINE PERFORMANCE. Safety Risk A LOSS OF MOTIVE POWER INCREASES THE RISK OF A CRASH. Remedy PARTS AND SOFTWARE ARE NOT AVAILABLE TO REPAIR YOUR VEHICLE. FORD MOTOR COMPANY HAS AUTHORIZED YOUR DEALER TO UPDATE THE POWERTRAIN CONTROL MODULE PCM AND THE TRANSMISSION CONTROL MODULE TCM SOFTWARE, AND TO CHECK FOR THE PRESENCE OF CERTAIN DIAGNOSTICS TROUBLE CODES DTCS IN THE PCM WHICH COULD LEAD TO ADDITIONAL DIAGNOSTICS, FREE OF CHARGE. Manufacturer's Notes IF YOU HAVE ANY QUESTIONS REGARDING THIS RECALL, OR BELIEVE ANY OF THIS INFORMATION IS INACCURATE, PLEASE CONTACT FORD DIRECTLY AT 800-392-3673 OR LINCOLN AT 800-521-4140. If the manufacturer has failed or is unable to remedy this safety recall for your vehicle in a timely manner, please contact the NHTSA Vehicle Safety Hotline at: 1-888-327-4236 or TTY: 1-888-275-9171 or file an online complaint with NHTSA.

NHTSA ID

11729913

Incident

Dec 31, 1969

The contact owns a 2021 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The contact recently set an appointment with a local dealer for the software update, but was informed by the dealer that the recall had been placed on hold. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not informed. The contact had not experienced a failure.

NHTSA ID

11723788

Incident

Dec 20, 2024

The contact owns a 2021 Ford F-350. The contact stated that while driving approximately 65 MPH, the vehicle lost automotive power. The low power mode warning light was illuminated. 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 vehicle was taken to a dealer, where it was diagnosed, and determined that a software update was needed; however, the software update was not available. 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 stated that there was no estimate for when the remedy would be available. The failure mileage was approximately 125,000.

NHTSA ID

11720003

Incident

Feb 23, 2026

Mileage

125,000 mi

The contact owns a 2021 Ford F-350. The contact received notifications of NHTSA Campaign Numbers: 25V686000 (Back Over Prevention) and 24V957000 (Fuel System, Diesel); however, the parts to do the recall repairs were not yet available. The contact stated that while driving at an undisclosed speed, the vehicle stalled while the accelerator pedal was depressed. Additionally, while in reverse, the image displayed was blurry. The vehicle was towed to a local dealer; however, the vehicle was not repaired because parts were not 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 failure. The failure mileage was approximately 129,000.

NHTSA ID

11719967

Incident

Jan 15, 2026

Mileage

129,000 mi

Driving and abrupt transmission shifting issues.

NHTSA ID

11718342

Incident

Sep 4, 2025

The contact owns a 2021 Ford F-350. The contact received a recall letter related to NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The contact was concerned about being involved in a crash. The local dealer was contacted and confirmed that the software fix was not available. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The contact did not experience a failure.

NHTSA ID

11704259

Incident

Dec 10, 2025

On 11/19/25 , my 2021 Ford f350 burned to the ground due to engine malfunction. From what the fire department said.

NHTSA ID

11702165

Incident

Nov 19, 2025

The contact owns a 2021 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 the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving at an undisclosed speed with the cruise control activated, the contact heard an abnormally loud popping and clicking sound. The check engine warning light was illuminated. The message "Decreased Engine Power" was displayed, and the vehicle experienced a loss of drive power. The contact coasted off the road and came to a complete stop. The message "Shift to Neutral" was displayed. The contact turned off the vehicle and let it cool down for five minutes. The vehicle failed to restart. The vehicle was towed to an independent mechanic, who determined that the high-pressure fuel pump had failed. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 132,900.

NHTSA ID

11697690

Incident

Nov 4, 2025

Mileage

132,900 mi

The contact owns a 2021 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. 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.

NHTSA ID

11690536

Incident

Sep 30, 2025

The contact owned a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power and was unable to accelerate as needed. The contact was able to reach to drive to the residence, where the failure persisted. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure high-pressure fuel pump (HPFP). The vehicle was repaired. After investigating the failure, the contact attributed it to NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The VIN was included, but parts were not yet available. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The contact had since sold the vehicle. The failure mileage was 280,000.

NHTSA ID

11682161

Incident

Mar 3, 2023

Mileage

280,000 mi

I have a fuel leak on this vehicle that seams to coming from fuel filter housing or fuel pump.

NHTSA ID

11677884

Incident

Jul 31, 2025

The contact owns a 2021 Ford F-350 Commercial Vehicle. 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 the vehicle had failed to start. The vehicle was towed to an independent mechanic, where it was diagnosed that the fuel pump had failed and needed to be replaced. The vehicle was not repaired. The dealer was contacted for the recall repair and informed the contact that the part to do the recall repair was not yet available. 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 failure. The failure mileage was approximately 100,000. VIN tool confirms parts not available.

NHTSA ID

11674273

Incident

Jul 14, 2025

Mileage

100,000 mi

At this point, nothing has happened. This is a fuel pump, bio-diesel issue that can cause a lack of power which is a safety risk. This recall has been active for 7 months with no remedy listed, but according to Ford Motor Company will require a software update? The remedy is replacing the fuel pump with a DCR valve. Waiting for the truck to breakdown and potentially leading to loss of life should not be acceptable. They know about the issue, they say no remedy, yet they are continuing to manufacture these vehicles. Are they manufacturing new vehicles with a known safety risk or did they fix the problem on newer model vehicles and just stonewalling current owners?

NHTSA ID

11673419

Incident

Dec 1, 2024

A large fuel leak occurred. The amount of diesel coming out of the top of the fuel filter area was so substantial that I could not drive the vehicle.

NHTSA ID

11663425

Incident

May 27, 2025

The contact owns a 2021 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 the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ID

11663214

Incident

Dec 20, 2024

Ongoing Fuel System Failures Related to Recall 24S78 – Request for Escalated Review To Whom It May Concern, My name is [XXX] , and I am the owner of two 2021 Ford F-350 6.7L Power Stroke Diesel trucks, both of which are affected by Recall 24S78 / NHTSA Campaign 24V957 concerning biodiesel deposit accumulation in the fuel system and a pending PCM software update. Vehicle Information: VIN [XXX] VIN [XXX] Both vehicles have already experienced critical failures that directly align with the described defect in the recall, including: Failure of the CP4 high-pressure fuel pump Repeated clogging of the water/fuel separator filter Loss of power, extended crank times, and intermittent no-start conditions These issues occurred prior to the recall remedy being available and have compromised vehicle performance and safety. I am requesting: A full inspection and evaluation of the fuel systems under the scope of Recall 24S78 once the software becomes available. Coverage or reimbursement for repair or replacement of the CP4 pump and related components if found to be caused by biodiesel-related damage as described in the recall. A formal service record entry acknowledging these failures for future reference and eligibility under the recall. Escalation of this issue to a Ford regional service manager, if needed. Given the significant safety risk and the known failure history of the CP4 fuel system, I ask that Ford address this matter thoroughly and beyond a software update, if necessary. Please confirm receipt of this inquiry and advise me on next steps. I can be reached at: Phone: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11663020

Incident

May 25, 2025

The contact owns a 2021 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 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. VIN tool confirms parts not available.

NHTSA ID

11657254

Incident

Jan 5, 2025

The contact owns a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the loss of power warning light illuminated. The contact parked the vehicle and turned off the vehicle. The contact attempted to restart the vehicle however, the vehicle failed to start as intended. The vehicle was towed to the dealer where it was diagnosed with a contaminated fuel system. The contact was informed that the fuel system needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure; however, the manufacturer was unable to confirm when parts would become available. The failure mileage was approximately 112,000. VIN tool confirms parts not available.

NHTSA ID

11655293

Incident

Apr 16, 2025

Mileage

112,000 mi

The contact owns a 2021 Ford F-350. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The contact stated while driving 30 MPH, the vehicle hesitated and stalled. The contact stated that an unknown warning light was illuminated. The vehicle was not able to restart. The vehicle was towed to a dealer where it was diagnosed and determined that the high-pressure fuel pump had failed and sent shards throughout the fuel system, and the fuel system needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and a complaint was filed. The failure mileage was 106,000. VIN tool confirms parts not available.

NHTSA ID

11653947

Incident

Mar 30, 2025

Mileage

106,000 mi

The contact owns a 2021 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 the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ID

11648768

Incident

Mar 17, 2025

The contact owns a 2021 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 not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. VIN tool confirms parts not available.

NHTSA ID

11648392

Incident

Mar 14, 2025

While operating my vehicle on a busy road the power failed and vehicle shut down. Saftey of myself and others were at risk as this occurred while actively driving. Upon restart attempt vehicle failed to start. Vehicle was towed to and inspected by an independent service center. Mechanic advised, based on codes from check engine, the high pressure fuel pump failed and metal shavings were in my fuel system. Mechanic replaced pump, flushed system. Upon return of fixed vehicle power dropped out, check engine light appeard again. Returned to independent service center with codes of metal shavings in fuel sytem again. Pistons replaced, still being worked on for further issues. No prior warnings, check engine lights, recall notices etc. Contacted ford dealership, advised there was no fix and nothing they can do, advised to call corporate. Called corporate who advised I'd be notified via mail when a fix was available and no further help can be given despite the condition of the truck. Truck is unable to be driven due to constant power failures. Advised to tow truck and get a rental, both at my cost, until a fix was discovered which could be upwards of 1 year, keep receipts as I MAY be able to submit for reimbursement but it was too soon to know if those reimbursement services would be covered under a fix for the recall 24S78.

NHTSA ID

11648307

Incident

Mar 6, 2025