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2021 Ford F-350 SD transmission problems

10 complaints (10% of all complaints for this car).

owner complaints
10
of this car's complaints
10%
crashes
0
recalls
2

Which part fails

  • Driveline: driveshaft
    1

At what mileage

Complaints by mileage at the time of the problem.

0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+

Ford F-350 SD transmission problems in other years

1998200020052010201520202026

Related recalls

Power train: axle assemblyReported July 15, 2021 · 27,604 vehicles affected
What is wrong
Ford Motor Company (Ford) is recalling certain 2020-2021 F-350 Super Duty pickup trucks equipped with 6.7L diesel engines and Dana model 275 rear axles. The rear axle housing may not support the load of the pickup truck and deform, which could result in driveshaft separation.
Risk
Driveshaft separation may result in a loss of drive power, or unintended vehicle movement if the vehicle is in park without the parking brake applied, increasing the risk of a crash.
Remedy
Dealers will inspect the axle housing for deformities, and repair or replace the housing, as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact Ford customer service at 1‑866‑436‑7332. Ford's number for this recall 21S31.

Recall number 21V536000 · Recall details

Power train: axle hubsReported May 25, 2021 · 17,616 vehicles affected
What is wrong
Ford Motor Company (Ford) is recalling certain 2021 F-350, F-450, F-550, and F-600 vehicles equipped with dual rear wheels and front wheel hub extenders. The front wheel hub extenders may be improperly attached to the front rotor hub assemblies, which could result in separation of the wheels and wheel extenders from the vehicle.
Risk
A detached wheel and wheel extender can increase the risk of a crash.
Remedy
Owners are instructed not to drive their vehicles until the torque of the wheel extender nuts can be verified. Dealers will inspect and tighten the front wheel hub extender nuts, free of charge. Owner notification letters were mailed on June 18, 2021. Owners may contact Ford customer service at 1‑866‑436‑7332. Ford's number for this recall is 21S26.

Recall number 21V390000 · Recall details

What 2021 Ford F-350 SD owners say

Most recent owner complaints, unedited.

Filed May 25, 2025 · Engine, Fuel system · CA

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 / the federal safety agency 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)

Filed Jan 19, 2025 · Electrical, Transmission · PA

Ford knew there was an issue back in 2021 as they so filed with your agency. Yet waited. Then warranty claims continued. Now, four years later they file as a safety issue, BUT have told me twice in phone calls that I can drive the truck, despite it could shut down on it's own while driving. I tow donated RV trailers to the North Carolina disaster, now I cannot as my dealership advised I not go on long trips. Ford refuses a like loaner, or any loaner at all. This is a Ford issue, not mine nor the dealership and Ford needs to either replace all suspected parts, have a resolution now or proved no charge loaners of like kind to all owners. This approach by Ford is totally unacceptable as they in two phone calls to corporate never once said to not drive the truck and the letter I received said they are not advising we park the truck

Filed Jul 8, 2024 · Acceleration, Transmission · NY

Transmission lunges forward at times even when putting into park position and starting vehicle. Also, when driving down the road vehicle jerks or bucks and throws you forward. Periodically, there is a complete loss of transmission function then you hear large bang and truck jerks forward. This has been reported to Fenton Ford Camden, NY several times and they cannot seem to find issue and stated if it doesnt duplicate happening when they have vehicle there is nothing they can do about it. This has become a serious safety concern when truck jerks forward when starting and park position and lunges forward in traffic. Thank you for your anticipated, cooperation and help resolving this serious safety matter. Thank You, [XXX] - Vehicle Owner INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 5, 2023 · Engine, Transmission · FL

1st when the truck is running it has 14.7v from cigarette lighter, and I had an app that reported over voltage since day one and have to replace the battery every 6-8 months. 2nd less than 60,000 miles had issues with drive train (could be something else as I’m not mechanical) and it went after the 60,000 miles because they said it was a computer issue. They said the issues were unrelated even though they did the same things. I had to wait over 2 months on parts as it was the same issue that GM had as they had the same parts.

Filed Jul 30, 2023 · Engine, Transmission · IL

Transmission shifts erratically and sometimes completely doesn’t work. Has left me in traffic with no ability to negotiate vehicle and was almost hit on multiple occasions. There is a recall on vehicles built before 8-20 Kentucky but my vehicle build date is 11-20. The local dealer said nothing they can do until my 11-20 Kentucky build date truck is included. No offer of loaner and truck is NOT SAFE TO DRIVE !!!!! This has left me without.... transportation..... faith in Ford trucks Also. ..... same vehicle has the 7.3 ( Godzilla ). Dead miss in 1 cylinder. Internet information says not common but it has happened on multiple occasions. Stuck lifter which causes loss of oil pressure and scoring of cylinder walls. Local Ford dealership said replace 1 head with remanned parts and new pistons. My F350 has 58000 miles one would think it should last longer than that My thoughts. LEMON LAW Thank you for posting of this message. I have spoken personally with several people who have had the same issues and with similar results. Basically nothing from Ford.

Filed Mar 10, 2023 · Transmission · MO

The contact owns a 2021 Ford F-350. The contact received notification of the federal safety agency Campaign Number: 21V536000 (Power Train) 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 made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Filed Jul 22, 2022 · Suspension, Transmission · CA

The rear axle repair was not completed and yet they reported that the dealer fixed it. Not true. The truck was taken in for repairs but the dealer was not able to fix it and told me that. They said I will have to get it fixed on my own. The rear axle is a known flaw and was required to repair or replace by the federal safety agency. I wonder how many other trucks have also had incomplete repairs and then reported as fixed?

Filed Apr 27, 2022 · Transmission · NY

I have owned the truck for just over a year and in that time occasionally when I put my vehicle in park and get out of the truck it will start moving without me touching it. It has happen 5 or 6 times within the year. I took it to the dealer and they told me there is nothing they can do unless the could recreate the problem. This situation is extremely dangerous especially if someone is in the way. One time when it did it the truck ran into my camper and broke the tongue jack. Another time it took off and ran into my hunting camp gate severely bending a solid steel gate. I was just about to step in front of the truck to go unlock the gate when it happened. One second longer I would have probably been killed. The last time it happened was about 2 months ago and after putting it in park twice it continued to roll and I had to put my plow down to keep it from moving

Filed Jan 20, 2022 · Steering, Transmission · 89 miles · AR

The contact owns a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the steering wheel was vibrating. There were no warning lights illuminated. The vehicle was taken to an independent mechanic who informed the contact that the failure was due to the driveshaft. The vehicle was taken to the local dealer who informed the contact that there needs to be weight in the truck. The contact attached a trailer to the vehicle however, the failure still occurred. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 89.

Filed Aug 3, 2021 · Transmission · WA

I was recently informed by Ford that my vehicle is subject to a recall (21S31) because the rear axle may deform and detach from the vehicle. I believe the Ford Safety Recall Report (and the federal safety agency Recall Number) is 21V‑536. My concern is related to the proposed remedy. Ford States that additional welds will be applied to the axle. Based on the information provided, I believe this will only mask the symptoms of a failure (detachment of the axle), and not the problem itself (crushing of the axle tubes due to insufficient tube wall thickness). I am a licensed professional engineer, which is to say that I have a basic understanding of material behaviour. With this in mind, I would respectfully ask you to consider the following: 1) Primary: Outright replacement of the defect axle housing with a unit that is manufactured with the "old design" axle tubes. If item 1 above is not chosen, I propose the following alternatives (in combination): A) Requiring replacement of the axle housing if paint loss is observed at the locations where the u-bolts are used to strap the axle to the spring perches. Many people have observed paint loss at this location, and it would indicate deformation of the tubing. B) Warrantying the axle housing for an extended period of time - perhaps 8 years or 100000 miles as was done by Toyota due to the frame defects which affected their pickups. C) Certification by a licensed professional engineer that the proposed remedy (welding the axle) will prevent deformation under rated conditions. I believe this is important because it will require a "person" to certify the adequacy of the repair. My intent in suggesting this is to ensure that the defect is not left in place. Again, the proposed remedy seems only to "mask" the problem. I fear it could result in another "Firestone Situation", where the public is put at unnecessary risk. I greatly appreciate you considering this request.

Questions about the 2021 Ford F-350 SD transmission

Does the 2021 Ford F-350 SD have transmission problems?

Owners have filed 10 complaints about the transmission of the 2021 Ford F-350 SD, 10% of all its complaints.

At what mileage do 2021 Ford F-350 SD transmission problems start?

Not enough complaints include the mileage to tell.

Was there a recall on the 2021 Ford F-350 SD transmission?

Yes, 2 recalls: 21V536000, 21V390000. Check your VIN to see if your car still needs the free repair.

What year does the Ford F-350 SD have bad transmission?

The Ford F-350 SD model years with the most transmission complaints are 2020 (54 complaints), 2001 (28 complaints) and 2017 (23 complaints).

Other 2021 Ford F-350 SD problems

Fuel system 40Engine 16Electrical 13Visibility 7Driver assistance 6Suspension 5Brakes 4Locks 4Steering 4Acceleration 3Body 3Seats 1Tires 1

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