Tried searching threads, but couldn't find a tranny problem similar.

1994 F350 Crew Cab Dually
460
E4OD
Purchased a couple of months ago.

During normal driving it winds up high (3500rpm) and sometimes slips before shifting to 3rd.

If I use the shifter it will immediately shift into 3rd, so I don't think it is anything mechanical.

If you stomp on it, trans shifts through the gears normally (and scares the hell out of the kid in the import racing you down the onramp).

Ran the tester at an auto parts store and there were no errors.

This is my first E4OD, all past vehicles have been manuals.

Though I did rip the A4OD out of my Mustang for a T5 a couple of years ago.

Read here that changing the fluid may help so that'll get done this weekend.

Need some advice on the sensors and how to troubleshoot.

All thoughts/ideas welcomed.

Thank you.

 

im having the same problem with my 93 f150 4x4 with that stupid e40d

 

i already changed my fluid helped for a day or 2 but that was it its back to doing it i even ran a trans flush though it i think its one of the electric shift controlers but i dont know how to check them if you find a solution please let me know those trannys are very exspensive

 

I'm going to swing by the dealership and attempt to beg for information from a tech.

As I look at the diagram provided here it narrows my search, but am still looking where to start. Guessing it's not the TPI as that should have been tested with the OBD.
That leaves:
Transmission Solenoid Body (subsystems) Transmission Range Sensor


With any luck they'll take some pity on me.

 

try a new speed sensor

 

hey i solved the problem hope this helps you my truck was doing the same thing and i did some research and found out that on that tranny the nuetral safety switch as auto zone calls it tells the tranny when to shift so i changed that and now the truck shifts smooth and perfect its a 37 dollar part

 

glad it fixed it, simple little part fails often is what I've found out. late 80 and early 90 fords have this problem