I have a 1993 F150 4.9 with E4OD. 115K miles.
I have a very noticeable tranny shudder mostly in 3rd and OD.

About 3000 miles ago I changed the tranny filter and fluid including the converter.
The truck drove beautifully. Like it was new again. But unfortunately in the last two weeks the shudder has returned and now is as bad as ever.

Is there anything else I can do myself to correct this problem.
I am going to try another fluid and filter change and hope this time it will last longer, but I suppose that is doubtfull.

So does anyone have any advice as to what the problem is, and what it will take to correct the problem for good ??

Thanks for your time, and I appreciate any assistance.
Dennis,

 

my '94 did the same thing. it turned out to be the torque converter. about $250 in parts and $750 in labor!!