I have a 2002 Ford F150 four wheel drive FX4 with automatic transmission. The problem is that when you take off from a stop under normal excelleration and turn the steering wheel either direction any at all it shakes and vibrates badly. The longer you drive it the worst it gets. some days it never does it under short trips. but if you drive 20 miles it wil do it nearly every time you take off. Last week I pulled a heavy trailer 200 miles and it never did it once until I turned the steering wheel and then it would do it severly and the whole truck would vibrate. The local Ford dealer said to put in new transmission, but it works fine and shifts great. Any suggestions.........I have read the same problem on other forums with the same truck....

 

is your limited slip rear froze?

 

drive shaft loose?, or my mustang had loose lug nuts (first week I got it) but it was more noisy that shaking

 

Does not appear to be limited slip, pulled codes P0712 and P1711 with code reader, and changed temperature sensor inside transmission, did not fix problem....still showing codes and low voltage from sensor. This only happens when you turn the steering wheel if you are taking off from a stop and dont turn the wheel any it never does it, but if you turn past the 1 oclock position it shutters, go back to 12 it stops.........