Normal with all 10 speeds..Chevys too...

 

My '19 5.0 makes this same clunk. Also the '19 Ram I traded in made the same clunk lol. Wtf?

 

I keep hoping that one of the truck magazines will write an artcle about the clunk, but I'm guessing they won't so Ford wont pull advertising dollars, or because they dont actually have to buy the trucks they test drive. Only Consumer Reports might actually write something up. Maybe

 

Subscribed. Read all 41 pages. Watched videos. Confirmed the driveshaft turn on mine.
Looks like I’ll at least get it documented at the 10,000 miles service package in case it turns into the Fiesta/Focus “characteristics” of the vehicle.

2019 3.5l w/ 4x4
Clunk started around 400 miles or so. No rhyme or reason as far as I can tell.

Only 650 miles on truck now and looking forward to clunking away for 165,000 more miles I guess 🤦‍♂️ 🤷‍♂️

 

mine does the same thing on my 2018 5.0 lariat

 

Here is the video I took of mine a while ago. It's pretty clear the drive shaft is receiving torque on startup. I am no expert, but I assumed this should not happen. The only way I seem to be able prevent this clunk is to put the truck in Park after coming to a stop, allowing the truck to roll a tad so the pawl firmly holds it in place against the gear on the output shaft, then I apply the parking brake. USUALLY if I do this there is no clunk the next time I start it. I just don't believe this is normal, and if it is, someone prove me wrong.

 

Mine did it for months and just quit. I have had all the updated flashes.

 

Did it stop after a particular flash? I’ve only had one to my knowledge.

 

I wonder if anyone who has installed a tune still has this happening?

 

A lot of us with the 10 speed transmission have this problem (Ford claims normal characteristic of the 10 speed transmission) and won't do anything for you. If you have not done so and it is under warranty take it to a dealer for it to be documented that you complained about it. Don't let them tell you without them taking the truck otherwise they won't do the paperwork and no documentation for you.

Most of us here don't feel this should be called normal by Ford but until some type of lawsuit forces them to do something OR something finally breaks caused by this issue within the 5 year 60,000 mile power-train warranty we as consumers are just screwed. Plus at one point, Ford or their dealers were giving lifetime power-train warranties with all new 2020 F150 trucks so down the road, when it might not help us non 2020 trucks, the dealers might push back if this issue causes problems.

If an automatic transmission is in Park, there should be no transfer of torque to the driveshaft but these 10 speed transmissions seem to do it from time to time so again how can Ford claim it is normal. arrrrrrrrrrrrrrrrrrrrrrrr

I hate paying so much money for POS trucks and Chevy is no better than Ford. They all have their issues that they don't fix and screw us, the people that buy their trucks.