Quote from: glock-coma on August 08, 2014, 10:17:36 PM
Could also be a transmission range sensor.
When it starts acting up watch the gear indicator on the dash, if the  "D"  disappears the trans might not know what gear its in.

Good point.  Here is a list of TSBs for 2010-12 SHOs that may be helpful to go through:
http://www.ecoboostperformanceforum.com/index.php/topic,496

Does this while stock tune is loaded too?

I didn't notice what the dash said but if it acts up again before Monday I will let you guys know.

It started doing this while stock yesterday. I wasn't even able to make one full throttle pass with the tune. It immediately got stuck in gear before I was able to get on the highway.

What's your build date?


11-12-10 - 6F50/6F55 TRANSMISSION - SLUGGISH ACCELERATION FROM 0-8 KMH (0-5 MPH) FOLLOWED BY A HARSH BUMP OR A SLIP ON TAKE-OFF FOLLOWED BY A BUMP - BUILT ON OR BEFORE 4/15/2011

10-09-09 - 6F50/6F55 TRANSMISSION - DTC P0751 - HARSH OR NO FORWARD ENGAGEMENTS - PERCEIVED SLIP ON ACCELERATION - SLIP/DELAYED AND/OR HARSH DOWNSHIFTS

10-06-04 - 6F55 TRANSMISSION WITH ECO BOOST (GTDI)- BUMP 3-1 COASTING DOWNSHIFT BELOW 10 MPH (16 KM/H) BUILT ON OR BEFORE 3/1/2010

10-04-03 - 6F50/6F55 TRANSMISSION - SHIFT FLARE INITIAL 2-3 SHIFT / SLIGHT DELAY/BUMP 3-1 COASTING DOWNSHIFT BELOW 10 MPH (16 KM/H) BUILT ON OR BEFORE 11/17/2009

If it's easy to duplicate, the dealer should be able to get it fixed.  How much longer do you have to wait before the warranty will kick in?  Hopefully they don't get you issues!

It's literally doing all but the first one lol.

Full TSBs of PM's list above

They are saying they can't find anything wrong besides a miss fire. I took the tech for a ride and he said it's just a miss fire. All the down shifting issues and everything just a miss fire. Laughable.