2021 Ford F-150 engine problems

“I had an oil change performed earlier in the day. Drove 90 miles on the oil change when I lost complete oil pressure and than had my engine lock up. After the truck was towed back to the dealership and some surface investigation was done they told me it would be 2K to take the oil pan off to get a definitive answer to the issue. For them the only fix was replacing the entire engine at 14k. They believed it was just bad luck timing the occurrence of the loss of oil pressure and engine failure. The event happened with 135,556 miles on the vehicle. At 122,000 miles I had my drive shaft detach on the expressway. At the time I was still under extended warranty on the truck. The fix for that was a new drive shaft and to replace the rear axle. The issue I have is believing that 2 catastrophic events on the vehicle would occur within 12k miles and the three events not being connected. The manufacture wasn’t able to provide me with any answers as to what failed or why making it incredibly difficult to make a huge financial decision on what to do. I struggle with a vehicle that has that low of mileage would just completely implode and be undrivesble.”

“The contact owns a 2021 Ford F-150. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated, and a alert was received through the mobile application. The vehicle was taken to a dealer, where a diagnostic inspection revealed that the knock sensor failed and required replacement. The dealer informed the contact that water intrusion on the intake manifold caused the knock sensor failure. The vehicle was scheduled for repair at the dealer. The contact attributed the failure to the factory omission of the engine cover and the cowl design directly above the engine compartment, which allowed water to collect on the manifold. The manufacturer was notified via telephone, and a case was filed. The failure mileage was approximately 64,900.”

“On September 10, 2026 about 9:10 am, I experienced an engine stall as I was approaching an intersection. I was slowing down and entering a left turn lane. Vehicle bucked like a horse and stalled. No warning lights or codes. It costed to a stop at which time I attempted a re start. The motor turned over for about 10 seconds and then started up. It seemed like there was a loss of fuel. This incident reminded me of a recall letter a got in the mail last year. After research I saw recall #25V455 with no fix yet. Called my local dealer and they said there is no codes so they would probably have to charge me a diagnostics fee of $250.00 and nothing they can do about the recall. Made an appointment and then I cancelled it. What is a person supposed to do? Drive until something bad happens? Take chances and pray for the best?”

“I am reporting a severe safety defect where Ford Motor Company's sequential safety recall software updates are actively corrupting powertrain modules and inducing physical mechanical failures while the vehicle is in operation.Following the completion of the 24S55 Engine Intake Valve Recall (which reflashed the PCM and wiped the transmission's adaptive learning tables), my 2021 Ford F-150 developed an immediate operational shudder. Shortly after, a forced Over-the-Air (OTA) update for the 26C10 Trailer Brake Module triggered a secondary network reset via the CAN-bus. The intersection of these two software-driven actions caused an operational fault that physically broke the torque converter clutch.A compromised torque converter clutch can cause sudden vehicle stalling, unpredictable acceleration lags, and catastrophic powertrain locking while driving at highway speeds, creating an imminent crash hazard. The local Ford dealership service department confirmed the hardware failure and noted that pushing automated software updates over unstable tables leaves the entire transmission highly vulnerable to total systemic failure.Ford is currently refusing to open an…”

“The contact owns a 2021 Ford F-150. The contact stated that the vehicle failed to start whenever the outside temperature was hot. The contact stated that the vehicle stalled. The vehicle started and then shut down. There were no warning lights illuminated. The local dealer was contacted and informed the contact that parts for NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline) were on backorder. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 65,000.”

“*Brake system failure, complete shut down of vehicle. *Vehicle unable to start. *Vehicle was taken directly to Peoria Ford ( 9130 W Bell Rd, Peoria, AZ 85382) via tow truck on XXX Confirmed when dropped off of brake system failure and vehicle not functioning. *Vehicle was inspected on XXX which we were originally told it was the battery. Although the vehicle was in for trailer software recall on XXX and during inspection at that time battery was in good health. *No warnings until attempting to use the vehicle on XXX and received the brake system failure alert. Vehicle would also not lock. *After battery was replaced by Peoria Ford I was then told the brake system would not release and would need Actuator misalignment reset/replaced.”