I have had my Ecoboost XLT Supercrew since March. I really like it. My question is, do any of you feel a “shudder” when you start from a dead stop. This does not feel like a engine miss but more like a torque converter or If I didn’t know better the tires spinning just a bit. It is a little worse when I am hooked to my travel trailer. This only happens when starting from a dead stop. It only last until the truck is moving about 1 mph. Any input would be helpful.

 

I have not noticed that, but quite frequently I feel a bump/shutter when I let off the gas or its downshifting sometimes. It's pretty noticeable, like running over a dip in the road or something.

 

I had this same experience when I was towing a motorcycle trailer. The trailer, with motorcycle, combined for a weight of appoximately 1600 lbs. and this happened while underway at about 40-50 mph. I was accelerating to highway speed but perhaps a little too gently on the pedal.
Later, after we stopped for dinner and I'd had a few cold bevies, my wife drove but didn't have this happen. She tends to have a bit more heavy foot so I'm sort of assuming that the truck was sensing a load and wanted a more aggressive right toe.
For what it's worth, my first thought was that this "shudder" was actually flywheel wobble...a semi-educated guess for sure!
I haven't had this happen again since this one incident but I'm going to be hauling my bike again this weekend so we'll see how it goes and I'll post again.

 

Here's another thread on it, (mine still isn't resolved):

http://www.ford-trucks.com/forums/10...-at-5-kph.html

 

are you running 87 octane??

 

I'm running 91 in mine.

 

[QUOTE=rancheroracer;4645008]Here's another thread on it, (mine still isn't resolved):

Thanks for the info. I am going to put a few more miles on before I take it in and also pull my trailer (7,000 lbs. +). The shudder seems to be getting less or I'm getting used to it. Thanks again for telling me about the other thread.

 

I was at my Ford dealer today, Ford engineer was there & said the latest is they want to try different rear springs. Supposedly suspension is the same with the Ecoboost as the older V8s & they think the springs will do it. I don't think it will but we'll see. The springs are ordered.