3.5L Ecoboost New Misfire Fix TSB Jan 2014
 

So Ford has finally come up with a calibration they believe will fix the misfire issues during damp rainy conditions. This new TSB was released the end of January. The best part about it is that they want us to take off all those air blocking plates from past tsb's which should bring back the coolers efficiency. Now this is only for the 2013-2014 models but hopefully soon enough there will be the same calibration fix for the 2011-2012 F150's. I also clarify the air cooler engineering numbers for all model years!