2017 FORD F-150 Complaints

December 2024 I started experiencing intermittent down shifts from 6th to 3rd. First time was on a very icy road while towing two snowmobiles on a trailer causing it to jack knife and I spun out. Luckily no one else was on the road. After a brief search, I assumed the well know lead frame was the cause. Im a diy person so I ordered new parts and replaced the leadframe myself. I've driven over 10,000 since with no issues.

WHEN DRIVING TO VISIT MY FAMILY ON THE ROAD, I WAS DRIVING NORMAL IN 6TH GEAR AND VEHICLE SUDDENLY JUMP BACK DOWN TO 5TH GEAR AT RANDOM TIMES AND WHEN SLOWING DOWN VEHICLE WILL STAY STUCK ON 3RD GEAR INSTEAD OF COMING BACK DOWN TO 1ST GEAR. THIS HAPPENED SEVERAL TIMES, SPECIALLY ON MEDIUM, LONG TRIPS.

while driving at normal speeds in drive mode, the transmission suddenly downshifts to 1st or 2nd gear causing immediate deceleration.

Transmission Valve Body and Lead Frame. With just under 80,000 miles I was traveling on the interstate with my family when the transmission suddenly downshifted, causing the truck to go into a slide at 70mph. Luckily, there were no other vehicles around us and I was able to get the vehicle under control without going off the road or hitting anything. After stopping, checking to see what might have been wrong (no warning lights at the time.), we continued on without incident. A few weeks later, the same thing happened again as I was coming home from work. The check engine light came on and the transmission was locked in 2nd gear. I called a local shop that has Ford certified mechanics and found out this was a common problem, and due to it being a common problem, there was limited parts available to remedy the problem. I ended up having to have the transmission valve body and lead frame replaced as well as the filter and fluid. $1806.35 In both cases, when the transmission downshifted to 2nd, it put me and my family in very dangerous situation. We got lucky! I had everything repaired at my expense and didn't report anything at the time until I saw an article that reported that this had happened to many other people. It is something that Ford should address, and any vehicles that haven't already had this fixed, should be fixed at Ford's expense. Also, what about the people that have had this replaced, such as myself, are we certain the new main frames and valve bodies won't fail in time?

Frequently I will be driving at highway speeds and the truck will unexpectedly downshift. This will happen around every 500 miles. I have only had it drop from 6th to 5th/4th, never any lower at highway speeds. I have had this occur multiple times at slower speeds but it will go away. During each time the code P0720, output speed sensor, will appear and I will have to clear the code and it will work like normal again. There has only been one instance, in my 2 months of ownership, in which the unexpected downshift happened, I then came to a stop and then the truck stalled at a stop light. The truck is available for inspection. My safety and others were put at risk since I lost the ability to control my throttle making my acceleration and deceleration erratic. Also, when I was stalled at the green light it was on a road that had a speed limit of 70 which I could have been hit by another vehicle predicting me to drive away from the stop light when I could not. It hasn't been confirmed by a dealer or independent service center but matches the description of the NHTSA investigation into the issue. The vehicle component has not be inspected yet. Prior to the issue, no warning lights have popped up. It is only when the issue occurs and I feel the truck unexpectedly downshift and no longer upshift that a yellow wrench will show up with the code i had mentioned previously.

My 2017 ford f150 6r80 transmission lead frame malfunction causing for the transmission to severely down shift and locking my rear wheels. At the time No check engine or wrench symbol showed on my speedometer dashboard until the following day. I was lucky no vehicles were close to me that could of rear ended me and loose control on the freeway. Took my f150 to my local ford dealership and confirmed that it was my transmission lead frame and fixed it.

My Ford F-150 is having issues that is known to Ford about the cold rattle start which consists of the cam phasers are defective and can cause serious damage to the engine. At the time Ford had put out some customer program and my vehicle has only got 36,000 miles on it and the problem has now just started. I called ford service center and the service man was surprised that mine started going bad at such a low mileage vehicle and pretty much said theirs nothing they can do except pay thousands in repair. And I explained to him that when ford had sent the customer program out my vehicle wasn’t encountering any issues and he said they cannot offer that to me. My truck is in very new condition don’t drive it much so now I’m stuck with a new truck where the engine can die out at any given time. Ford knows this was a problem from the beginning so why didn’t they recall this as this is a very expensive repair. I think this should be taken care of by the dealer as I have a new truck then have to turn around and spend 5,000 dollars on repairs

I just paid 2129.05 to have the separator plate on my 2017 Ford F-150 3.5l /10-speed replaced. The issue was the though bolts in the torque converter were making rotational contact with the stationary separator plate within the bell housing. Ford has a TSB concerning this issue. The number is; SSM52295 ,TSB 19-2230. This specifically cites 2018-2023 models with 3.5l or 5.0l engines, similar issues and symptoms [3.5l/10-speed] occur on 2017 models. It seems this is a known flaw yet there is no financial consideration for this expensive repair. This is not a wear item. It is stationary. This situation has developed over the past several months with most notable audible evidence occurring upon very cold weather initial start-up.

The contact owns a 2017 Ford F-150. The contact stated that while driving at various speeds, the vehicle hesitated while responding and felt like the transmission was shifting in and out of gear. Additionally, the contact stated that the vehicle downshifted unintendedly while driving, and the vehicle jumped and hesitated to respond while attempting to drive from a complete stop. The power train warning light was illuminated. The vehicle was not diagnosed or repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 100,000.

While driving my 2017 F150 Lariat 4x4 5.0LV8 with 6speed transmission and 48,700 miles on the odometer at roughly 55mph this morning - the transmission suddenly downshifted to 2nd gear. The downshift was sudden enough to "bark" the rear tires. Thankfully, no one was near me, and I was able to maintain control of the vehicle and reach my destination safely.