Hey guys, I’m wondering if anyone could shed some light or pointing me in the right direction here with my E4OD. Overall I’m happy with how it performs, but their are a few small issues that lead me to believe it is not performing as well as it could.

The truck is a 95’ F250 with a 460. Engine and trans have an original 140,000 miles. I’ve owned it since around 100k.

The truck hard shifts between 1-2 shift when not under heavy throttle. It’s not a terribly hard shift but enough to make me concerned. The trans also seems to “shuffle” quickly between 3-4? shift. It hardly stays in that gear before the rpms drop quickly and the truck lurches forward faster. There also is a hesitation when kicking in and out of OD around that 35mph mark, again its not terrible but definitely noticeable. The thud going into overdrive is probably the worst part. Everything described here has been consistent since I’ve owned the truck.

Another phenomena I’ve just recently picked up on is a hesitation/hiccup when i use the left blinker while the truck is in OD. It seems to only effect the truck when its in OD and only seems to do it when using the left blinker as far as I can tell.

All my lights are functional which I know can sometimes be related to these issues. I believe my speedometer is a few MPH off, could this be causing any of these issues?

 

Maybe a dumb question but is the fluid level correct? Also have you changed the fluid and filter? Sometimes a fluid change can make significant difference.

 

The E40D i have had an issue of hard shifts.
Had it been rebuilt or do you know? the only thing that has ever gone wrong with my 97 was the Trans. had to be rebuilt little after 100k miles. 171500 miles now. And I change the fluid every 30,000 miles. I also keep it running really cool. I bypassed the radiator with my Cooling lines and put in another bolt on cooler. I never saw the reason to run trans fluid thru a radiator in the high desert. 100 degrees is common here.

One other thing to check is the TPS. If you replace that. Buy Ford only.

 

The fluid level is normal and looks good. I have not changed the trans fluid or filter since I’ve owned the truck. I have thought about getting it flushed/changed but am afraid that may do more damage then good from a few horror stories I’ve heard. I think I will go ahead and have the fluid changed when the weather warms up though.

It is the original transmission and has not been rebuilt to my knowledge. The truck is an F250HD and came with a factory trans cooler I believe. I don’t work the truck all that hard aside from the occasional road trip with boat in tow. Even then, the truck is hardly loaded to 50% GCWR. Im in Michigan and we seldom see days over 90. The 460 puts off a load of heat but I believe the trans stays sufficiently cool.

I do know that the first 100k of its life it was used almost exclusively as a tow vehicle. First owner was an old ranch owner who pulled a livestock fifth wheel and the second owner was also an older gentlemen who used it tow his travel trailer to deer camp. That being said, I’m sure the trans is a bit tired at this point but the truck has been really well maintained.

 

I have not had problems with the "transfusion" method of changing the fluid. Really not much of a filter on the E40d. More of a screen. I also add 2 bottles of Lube Guard for fords. Also i use Merton V.

I think my truck will outlive me. They seem to be bullet proof. But, if the trans. Goes out again, i think i will replace rather than rebuild. A 460 is just that a 460. Service them and they go on sucking down gas.....and on....and on.....