2011+ 55-60mph 5.0 Shuddering and EcoBoost Engine Miss/Loss of Power - Possible Fixes
Mine is also going in the shop in the morning, dropping it off at 7am. The service rep where I bought the truck was unaware of this TSB but was very considerate and looked up the info while I was on the phone with him. He said mine, with the 8-30-11 build date, falls under the Catalytic Converter replacement also but he would have to order it. I hope this resolves the issues that everyone on here has been having.
I have never posted on here before but have been reading this site since I changed to a new Lariat+ EB 157” in Nov 2011. I have a little over 5k on it now. I have had the Suddering/Misfire problem for about a month & 1/2 now. Mine has been doing it from low speed up to 55-65mph. I am in New Bern NC close to the coast so you guys that have felt this on hills I do not experience. Mine does it just normal driving and real bad when pulling a boat. Any way took it to the dealer today for this reason and my electric seat wants to act crazy but mainly they did the new TSB 12-02-10 today and said that is ran good today. Had to leave it with them tonight so I am not sure if it fixed but I have high hopes. One thing that the SM said is when they did a Mode6 on the computer it showed no misfires/ backfires and that blow me away. All this time the noise that I have been hearing sound like it was coming from the exhaust pipe area so I am very confused now. I will report on this again after I get it back tomorrow. I know how frustrated some of you guys are and I hope this is the fix. I have had four Tundra’s before this Ford and I changed because of my Research and the CEO so it is important to me that I made a good decision. I also want to THANK each one of you that take the time to post information on this site, it has been a great help. RET U.S Army 1SG
Last edited by Night-Hook; Feb 18, 2012 at 09:57 PM.

