Hello all I am new to this site and a new ford owner 2007 f150 lariat screw, I am reading your post and when I bought my truck all was silky smooth as I drove it home two hours I heard a shutter/vibration between 40-60 mph if I more aggressively step on the throttle. Other than this I have no issues whatsoever, I ahve a powertrain warranty with the truck, so I feel good that it will be repaired. But I was also reading the tsbs on here about rear axle pinion angle, it is TSB 06-19-16 is this how yours started just curious because when I take my truck back to the dealer for repair I want some firepower. Considering I just bought it. Any information would be great as I really love this truck but dont want to be plagued with problems. Thanks Scott

 

I had the exact same problem in my 02 screw with the 5.4L......sometimes the coil over plugs (COPS) go bad which causes a small misfire for some reason. If I were you I would start out by changing your spark plugs if it hasnt been done in a while. Once I did that my problem was fixed. you can buy new cops on ebay if you need them.