dkdozier

I just bought a 2016 F150 XLT with the 2.7 Ecoboost.

I have played with the auto stop engine function but I am still having issues with the truck vibrating while Idle.

This happens when the engine kicks on after the auto stop disengages, along with when I am stopped and the auto stop is disabled. It feels like the engine is shaking. My wife even asked me what that shaking was.

I have read a few different forums on this but haven't really seen any answers to it. I played around with the AC and it doesn't seem vibrate as much when the AC is off... Not sure what that means.

I'm just curious if there is something wrong and I need to take it back to the dealership to have it looked at, or is that normal?

I have 600 miles on it so far.

FredB

I have a 15 2.7 and mine is smooth, hard to tell if its running. I would take it back

Daniel Cervantes

I just bought a 2018 f150 xl with the stx package 2.7 eco, and I agree with what the other guys said engine is very smooth and sometimes done even k ow it's on, however the next time your using auto start/stop just from what I've noticed the truck will try to go when you let off the brake but it sometimes rattles.

It's not necessarily a bad thing it's just the engines idle power is lower than other engines like the 3.5 or the 5.0 v8. I had your problem happen a few times but most of the time I'm in a slight hill and the truck struggles to go forward(note I dont have hill assist) once I take my foot of the brake that is. But when I press the gas the truck doesnt rattle it nicely goes forward.