I have an eco boost in my 2012 Lariat SCREW, I bought it new, but after a few months my truck would surge under a mild load like going up a slight incline at highway speeds. everyone that rides with me notices the surge. My truck is still under warranty, so I talked to the Dealer service manager. I informed him of a TSB out for such an issue, he acknowledged the TSB was out, but said it did not pertain to my exact truck, so there is nothing he can do about it.
Any Ideas? Thanks

 

Tell him, "if the forking thing is surging, they have to fix it!"

 

How many Miles? I was getting the surging for about 5000 miles then it started a low grade misfire right at 40k miles.. Changed the plugs and gapped em to .030 and it runs perfect now.

The 11 and 12s are known for having the Plug Gaps out of spec from the factory. Pull a few plugs and check the gap, betcha they will be all over the place.

 

Let's see what I can do to help, bottlemanpt. How many miles are on your truck now? When did you have your dealership check this out?

Crystal