I am having this jerking motion problem with my truck, I had a few times before I left at around 70 mph. let off the gas, then return the gas, to feel this nice jerk/ thud my truck made. Anyone know what this problem could be and whats the fix for this?

 

still having this problem any solution or idea to fix this problem with the jerking that would be great. thanks!

 

Sounds like the torque converter lockup system. You might want to pull your negative battery terminal for a while to force the computer to relearn. Then go out and get on a nice stretch of road where you can get up above 70MPH and then let of the gas and let it coast down to 35MPH and then do this again about 3 times. If that doesn't work I got rid of the same issue on mine when I programmed it with the Edge programmer.

 

Yep a pcm reset might do the trick......hopefully......

 

this sounds like a slip yoke problem as well.

you can try greasing it. others have said it works and some say it only cures it for 2 weeks.