So on Saturday 8/31, 1 year and 12 hours after I drove my 2012 Lariat Super Crew off the lot, as I was driving home from NJ over the GW bridge, I finally had my Eco-Boost failure. It was the third time overall (second on the 600 mile trip from Boston to NJ and back) but the first one that actually caused the check engine light to go on, and left me unable to go over 40 mph for about 3 minutes. The first time was a day I had been on the highway for over an hour in the pouring rain, and I was stuck at 60 for a minute, and the second was on the way down to NJ, when I had been at 75 for between 2 and 3 hours, and punched it to pass someone. On the NJ trip, it was very humid, the same conditions described by most people when they have the problem.
Unlike what I've read happening to other people, the truck stayed at the same speed I was already traveling, but would not accelerate. The tranny dropped into a lower gear like it wanted to accelerate, but it would not give any power. When I got back to MA, I stopped by my dealer, and when they read the code, it said I had a misfire on cylinders 4, 5, & 6, most likely caused by the condensation getting sucked up into the engine.
The engineers at Ford released the latest TSB for the issue on 8/5/13. TSB 13-8-1, found here: TSB 13-8-1
Basically the new TSB removes the shield the previous TSBs put on the top of the air cooler (if installed, mine never had it done) puts updated software in the PCM, and installs a plastic shield over the lower 8 rows of fins on the cooler (by install, I mean sticks on with double sided tape). I guess this makes sense since by blocking the air flow to that part of the cooler, it should make it stay hotter, and hopefully evaporate the condensation.
I'm wondering if anyone else has had this TSB done to their truck, and how it's worked for you. I just got my truck back on Friday, and took it for a 150 mile drive over the weekend. It still drives great, but I do notice the engine seems to perform a bit differently. Not bad, it's still got plenty of power, and gets out of it's own way even better then the CVPIs I've driven, but it just seems different. I can't quite put my finger on it though. Any thoughts?
Mike- I have a 2013 that I bought in July of this year. It already has the shield installed as you mentioned from the TSB so it's what I've always known. I've got 8k miles on her now and no problems but I haven't been able to drive in humid conditions for hours down the highway. I hope you're not having more problems now, I am very impressed with this truck so far.
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