2020 FORD F-150 Complaints

My 2020 Ford F-150 5.0L Coyote V8 had its engine replaced under factory warranty on 4/30/25 by an authorized Ford dealer. The replacement engine was installed with my original 50,000 mile fuel injectors reinstalled by Ford's technician — I was not informed new injectors were not included. The vehicle is now diagnosed with a failed direct fuel injector causing a cylinder 3 misfire at approximately 10,000-12,000 miles on the replacement engine. Additional injectors show signs of imminent failure. The shop also documented the replacement engine running 2 quarts low on oil at only 10,000-12,000 miles of service. This level of oil consumption on a recently replaced engine is abnormal and unexplained. The safety concern is twofold. First, a vehicle running chronically low on oil due to abnormal consumption on a replacement engine risks catastrophic engine failure without adequate warning to the driver. Second, misfiring cylinders affect vehicle driveability and create unpredictable power delivery that constitutes a safety risk particularly at highway speeds. Symptoms including rough running and the check engine light first appeared in November 2025. The vehicle has been at an authorized Ford dealer for diagnosis since May 2026. Ford Customer Relations has declined goodwill assistance despite the failure occurring on components reinstalled by Ford's own technician during a warranty repair, symptoms originating within the warranty window, and the vehicle being only 8 days outside the 12-month parts warranty expiration. I am requesting NHTSA investigate whether Ford's practice of reusing high-mileage fuel injectors during engine replacements under warranty constitutes an unsafe practice, and whether abnormal oil consumption on replacement engines represents a systemic defect.

I own a Ford F-150 equipped with the 10R80 10-speed transmission. The truck has approximately 79,000 miles and has been diagnosed by a Ford dealership with CDF drum/cylinder and solenoid body failure. The quoted repair cost is over $10,000 for a remanned transmission replacement. This truck has shifted hard since approximately 30,000 miles, but I was led to believe it was normal behavior for the 10-speed transmission. The vehicle has been lightly used and properly maintained through Ford. It is still on its original tires and brakes, which supports that this is not a high-abuse or heavy-use vehicle. A major transmission failure at 79,000 miles under normal use is not reasonable vehicle durability. The failure involves the CDF drum/cylinder, a known failure point in the Ford 10R80 transmission. This can cause harsh shifting, delayed engagement, gear skipping, slipping, abnormal acceleration behavior, and unpredictable shifting. These conditions create a safety concern when accelerating into traffic, merging, turning across lanes, passing, or driving at highway speeds. Ford has issued technical service guidance related to the 10R80 transmission and CDF drum/cylinder failure, including diagnostic procedures for hydraulic leakage and internal repair. This confirms the issue is known and identifiable, yet owners are still facing extremely expensive failures outside the standard warranty period. Another concern is that Ford is proposing remanufactured transmission replacements rather than new replacements, despite reports of repeat CDF-related failures after remanufactured units if updated CDF components are not included. This is not normal wear and tear. This is premature failure of a known defective transmission component that affects drivability, reliability, and safety. Ford should not leave customers responsible for potentially multiple $10,000+ repair costs for a known 10R80/CDF drum failure.

The transmission was already rebuilt under warranty, had 49,700 miles. While traveling between 70-80(while passing)open road the transmission tried going into 1st gear happned a few times until went into limp mode. Just me, no trailer, nothing in the bed. The dealership nor corporate would do anything since I had turned off the truck. Even though the codes were stored.

Transmission shifts hard and downshifts with a huge clunk. Jerking the vehicle very big known issue for these trucks and am extremely low miles. Under 50k miles A bad safety issue and huge repair bill for the consumer.

I purchased a 2020 Ford F-150 XLT with a 5.0L engine from Quirk Auto Group in Maine approximately six months prior to discovering a major engine defect. At the time of sale, I was provided documentation stating there were no known mechanical issues or prior defects with the vehicle. Shortly after purchase, I brought the vehicle back to the dealership due to a noticeable rattling noise and performance concerns. I was told the noise was caused by debris (rocks) stuck in the undercarriage, and no further action was taken. This concern was documented during that visit. Over time, the vehicle began consuming excessive amounts of oil, approximately three quarts per month which is far beyond normal operating conditions. I later brought the vehicle to a certified Ford dealership for further diagnosis. After inspection, I was informed that the engine had significant internal wear, including worn cylinder walls, and required a full engine replacement (long block), with an estimated cost of approximately $15,785. I have since learned that this engine issue is consistent with a known defect documented in Ford Technical Service Bulletins (TSBs) as well as an open class actions lawsuit against ford, and records indicate this issue had been present with the previous owner. This information was not disclosed to me at the time of sale. I have made multiple attempts to resolve this issue directly with both the selling dealership and Ford Motor Company. Ford has offered partial financial assistance toward the repair, which further indicates acknowledgment of a defect. However, the dealership has not taken responsibility for selling a vehicle with a pre-existing condition that was either known or should have been known.

The 10-speed automatic transmission in my 2020 Ford F150 slips between gears and has failed to engage from a stop in multiple instances. There are no warning lamps or other indications that anything is wrong with the vehicle. The issue is known as a very common problem with this transmission, as confirmed by multiple mechanics when inquiring about a potential fix.

The engine started running loud and making a knocking noise. Took it to the dealership and they said it needs a new engine. Regular maintenance performed by Ford. There were no warning lights that came on prior to the engine failure. They say the engine is on back order.

F150 220. ford has been contacted before about the 10 speed transmission down shiften hard, or trying to excel and hitting hard. they said they knew of the problem. but only suggested in reset the computer " basically undue the battery " but the problem is still there. they stated the 10 speed was the worst transmission ford ever put in this vehicle.

Transmission disengaged while driving rendering the truck immobile in traffic. This occurred on multiple occasions. No warning lights or indicators of vehicle problem. Diagnosis and condition/issue reproduced by a Ford dealer resulting in complete rebuild of the transmission. This vehicle has the 10R80.

Having hard or delayed shift as described on TSB 23-2123. What I see dangerous is momentarily downshifts from 4th to 1st.