Well, after a new rear axle and drive shaft and about two years latter I have a new problem. At low sppeds between 20 and 50 MPH my truck will jerk from time to time. Doesn't really make much noise, but you sure can feel it. This is at crusing speeds, not accelerating or slowing down. Does it in 2 and 4 wheel drive. This summer I inspected the rear axle and installed new fluid, looked OK. I hope it's just a shift valve sticking, I plan on having the tranny flushed and filled soon anyway.

Anyone else ever have this problem? I hope it's an easy fix, I plan on trading trucks soon and don't really need any big bills right now.

 

Bump......does not seem to do it if driven with overdrive off.

 

Hmmmm have you had your transmission serviced recently? If not try that. Also is the motor cutting out when this happens?

 

The thread title made me chuckle.

 

I have the same problem and I replace my PDFE sensor, change the filter and fluid in the tranny and still doing it

 

I had the same problem at 60+ never could figure out what the problem is.

So Im not much help lol

 

what ddi you do? I have the 5R55E tranny an di gues there noted for them and in teh explorers

 

ive noticed this problem from time to time, it feels to me like its in between gears shifting but i cant realy tell, kinda like it cant decide wether or not to shift up or down, and i have no ideal whats going on. ive been wondering the samething if its the same jerking your feeling. doesnt do it all the time just at certain speed at no particular RPMs

 

x2

 

My input to this thread is its your FRONT drive shaft. I am having same issue at 55 mph + with my front shaft and not applying gas. It vibrates. and is slowly getting worse. I would look into that. Being we have similiar trucks could be same problem. Since i two have replaced my rear end and my rear drive.

 

yea true never thought of that its wierd though

 

Yeah it may just need a new ujoint in the front they tend wear after tons of miles.

 

30 something thousand?? But i dont have a viberation

 

Yours is a stick or auto? And what exactly is yours doing as mine was mainly to OP.

 

auto 5R55E, it thumps at liek 40mph and up

 

Oh its an auto. I have no idea how any of the goes. I have heard of people having issues with the chips but didnt you say you already replaced it?

 

chips?

 

They is like a sensor in there. ugh i wish i knew more on it im sure you can search it. Someone mentioned have an issue with it. And ford replaced the sensor in the tranny and it fixed the problem. something to do with shifting and shift points being its an auto.

 

the PDFE? idk but you have me sold lol, if you could find it PM me it

 

I will take a look in the search and see waht i can find i know your not the first one who has had weird shifts and some are computer related esp on newer models. I know someone will chime in.

 

alright but kep me posted, I dont feel like giving a local tranny shop $300 to look at it and not know what they are doing

 

I had the same problem. I replaced the first (shift) and third (can't remember what it was called) solenoids, flushed/replaced fluid with Mobil 1 ATF, replaced filter, added 2 ounces "shudder guard" (for torque converter shudder), and the problem seems to be solved.

 

Glad to hear I'm not the only one with this problem. My tranny is getting flushed and filled and looked over closely. Hope it goes away!

 

Man low speed jerking must take awhile....

 

im having a problem high speed jerking personally.