Ecoboost wouldn't accel. today
 

Long story short today turning onto the highway from about 15 mph I went to accelerate quickly and after the downshift the truck just kinda lugged along for a few seconds. I let off the gas and accelerated slowly and everything worked fine. Another hour into the drive after trying to replicate the problem with no luck it happened again. This time I was trying to pass from 50 mph, right after the down shift same thing just kinda lugged along with no further acceleration. A few seconds later it picked up and all was fine from then on out. Dealer said it might be a computer memory issue, whatever that means. They offered me a free rental and said they would look at it first thing in the morning. The truck is a 2011 FX4 EB w/ 9k miles. Anyone else have anything like this happening?

Nope, mine runs like a banshee.............

I had that same thing happen. Once. But mine is a 3.7 V6. I'm pretty sure that it's a PCM issue. I've since loaded tunes from 5Star. Hasn't happened again.

Have the dealer check it out. They should be able to easily fix it.

Good to hear I'm not the first one. I have a rental but hopefully they don't keep the truck too long. If I wanted to drive a Chevy Malibu I wouldn't have bought an F150, silly rentals.

FX,
Google, Ecoboost knocking/bogging problem

There are many discussions about this on other websites. I don't have time to read through them all this morning, so I am unsure if a fix has been found.

I wonder if that's the same issue.... TSB 12-2-10 (intermittent surging)
Let us know what the dealer done to fix it

Description of TSB 12-2-10
FORD: 2011-2012 F-150
ISSUE:
Some 2011-2012 F150 vehicles built on or before 2/7/2012 and equipped with a 3.5L gasoline turbocharged direct injection (GTDI) engine may exhibit a malfunction indicator lamp (MIL) with various diagnostic trouble codes (DTC) and driveability concerns.

Thanks for the info guys, looks like I'm not the first with this problem. Hopefully it's a quick fix, I'll let you guys know what they say.

Around Christmas time mine did that, then the PCM relay fried, there is an update/reprogram from ford that has to do with that, they did the reprogram and it seems to have fixed it, they are putting new catalytic converters on it this week, so ford is aware there is a fix and you should be good to go.

TSB 12-2-10 mentions possible replacement that the left (if i remember correctly) cat

Makes me wonder if this TSB is related to the hold up on ramp 59?

They didn't mention the update but he called today and said it was a bad cat. they are trying to get a new one in to replace it tomorrow.

:thumbsup:

Thanks for all the help from everyone. Straight forward quality information helped put my mind at ease while my first ever new truck was worrying me pretty good.

I Had this happen to my eco once, pretty scary, i posted about it a few months back, put bd tune on and hasn't happened since so I'm assuming PCM