The first thing to do is an ECU code readout. If any fault codes are set, they can help you to diagnose the problem.
Hey man I know its been a very long time, but what ended up causing this problem? I am having the same exact problem and it feels dangerous at higher speeds. Thanks for any input. Im thinking its a wheel bearing issue as of now.Sorry, Some additional info.
It jerks to the side. Feels like it in the rear, however all the bushings were replaced along with the upper arms and another smaller arm (sorry, im not sure the name) shocks were also replaced.
The truck use to sway back and forth on the highway, the work that we did this past weekend (noted above) seems to have corrected this for the most part.
The feeling of this jerk is like something moving out of place with throttle and back into place when you let off. Also it doesn't do it when I go from stopped to applying gas. Only when the truck is moving already.
Did you ever figure your problem out? Mines doing the exact same thing... almost as if it's shaking its rear end like a dog wags is tail...Hey man I know its been a very long time, but what ended up causing this problem? I am having the same exact problem and it feels dangerous at higher speeds. Thanks for any input. Im thinking its a wheel bearing issue as of now.