" I have 2024 F150 XLT 4WD that a Driveline vibration since new when pulling a trailer of any size about 50 to 65 MPH, Now I have 30K mile and same Vibration shows up (without trailer) after a stop for fuel or break for 20 minutes or so.Then vibration goes away after 3 to 4 miles at 55 Mph.It feel like it's in 4wd during that period! Dealer has rode with me, says it normal, possible trailer issue ! (No trailer attached)I'm concerned it will get worse as regular Warranty expires. Thanks for any comments! Dustyford"

 

Do you have stock wheels and tires? What air pressures maybe an out of round tire...
Do you have a lift/level? Could be driveshaft angles...
You may have a sticky or seizing up ujoint, maybe you have an issue with the front diff, CV axles. The computer does engage the electric wheels ends to warm up the front diff for a preset amount of time then disconnects.
Is the exhaust touching or sitting on the frame anywhere.

There might be something else I've missed, this is just some things I've seen on vehicles off the top of my head.

 

web site is very confusing to use!
stealth services
Thank you for your reply,
Truck is completely stock, Tire have been spun and balance,
I'm quite sure it is a Driveline issue with trailer tow.
But the cold engage of 4wheel shaft is interesting, since this is 2nd winter use, I engaged 4 with for dealer tech, very similar vibration, he said was normal!
Dustyford$$

 

Does your tire shop road force balance? If not, I suggest it. There's been a few front differential failures. You might want to check the front and rear diff fluid levels. Lift up the rear axle (block the front tires) and spin the tires. Check for out of round tires, wheels, bent wheels, put it in neutral and pin the driveshaft. Then do the same thing to the front.

 

Every f150 I've owned past 01 has had some sort of vibration. I still think it's due to moving the rear shocks. My 04, 08, 13, 2023 all have a slight vibration on the highway at various speeds that I haven't had with other brands. Pretty annoying.

 

I used to get a vibration on some sections of road when towing on the interstates. Typically, I have the same load on the same trailer, and it was almost repetitive on certain sections. Only under acceleration.

There is no silver bullet.

Part of the cure was finding the right position for my wheeling truck on this trailer. Another was having the trailer level once loaded. Coming back from the store it was unladen and level. With the truck on it I took me a while to figure out that it wasn't level any more. I needed to drop the trailer least two holes on the drop hitch with my wheeling truck loaded.

The OP's situation suggests to me that pulling the driveshaft and getting it replaced or rebalanced might be needed. I can promise you "They don't all do it"

 

thanks! Your right, I've had 4 F150, 1st one time will do some more checks.