I had the tires on 2010 FX4 rotated for the second time in 12k miles. After the rotation I hear alot of road noise when I turn to the right, much more than turning to the left or just going straight. The truck has never pulled or acted like it is out of alignment. What could it be ?

 

its because your tires are worn differently. the way they rotate your tires is the fronts are moved left to right and moved to the back, while the back tires are moved straight forward.

give it 1000 miles and you wont notice the noise anymore.