This has probably been asked a few times. I have an E4OD in my 93' f350 7.3 diesel that needs rebuilt and before I do anything I was wondering if there is a way to convert it to a non electronic system like what's on the c6. I don't know why Ford didn't make a version of the AOD for the diesel. I just hate some of these electronic systems so if there's a way to convert it I would appreciate some pointers.

 

Oh how I wish that was possible, I'd be amongst the first to do this conversion. Unfortunately no, can't be done, no way about it that I'm aware of.

 

That sucks. I thought there was a way but so far no answers to my prayers. If I figure out a way myself I will send forth the knowledge so that all will be free from bondage.

Green Bay won the Superbowl!!!!!! Sorry. I'm in a good mood. Car trouble can't get me down tonight.

 

The E4OD was built heavier than the AOD, so if you pull a lot it's better to keep, after all it is a C-6 with OD

 

You could theoretically make her shift manually, it would involve modifying the MLPS and installing some relays and diodes to make the thing shift the solenoids in the VB without the PCM. That's not really the hard part, the true problem is in regulating the line pressure - it's done by a variable-force solenoid, which my understanding is works off current, and not voltage. If you can make a simple device that reads the TPS voltage and uses that to adjust the EPC current accordingly, then there will truly be no need for the PCM. Alternatively if you could build the E4OD so it can handle full line pressure all day every day, then the whole EPC issue becomes moot...

About the Superbowl, I honestly don't really care who won, the important thing is it gave me an opportunity to hang out with some good old buddies and drink some good beer and eat some good grilled foods!

Not quite a C6 with OD, but close enough I suppose. Also, nowadays you can get an AOD built to reliably hold up to to some stupid amounts of power and torque, and engines like his and mine don't make that much torque to begin with (rated at 185hp and 330lb-ft IIRC)... The real issue would be how to bolt one of them things to an IDI engine, some custom adapter plate must be made for that.

 

Summit racing has kits for shift performance for these trucks, or at least the used too, haven't checked in awhile.

 

Actually the E4OD can be built to handle just about anything you can throw at it. You have a 93 so it will need quite a few updates and fixes. One of the main problems with the first generation units was indeed the first generation computer. The line pressure problem was addressed in the newer style computer and next generation pumps. Now there are indeed after market planets and an entire kit released by Sonnax that addresses most of the issues of the E4OD. Doing some research will get you in the right direction. If you want let me know and I'll post as much info as I can tonight when I get home.

 

Thanks you guys for the good comments. Same here on the grilled goodies, plenty of time for that during that half time show, lol.

Now that the Superbowl buzz has worn off I'm back to work. Any info on upgrades will be most appreciated. I had hoped that there was a way to change out solenoids and really just redesign the internals to work mechanically. Sounds simple enough but I know it's not very realistic. I can build an AOD adapter using a diesel bell housing among other things but besides the cost of a build up I would hate to be the first to test the AOD's strength and have it fail on a hunting trip. Although I have had such problems with the E4OD. Other than that I believe that the AOD 6.9/7.3 is a match made in Ford Heaven and have not completely ruled out the idea. I was also going to go the way a am taking with my Bronco and use an Allison but I'm really interested in a double overdrive thanks to my new ( used ) Gear Vendors over/under. $200

 

GV for $200 - go ahead and rub it in, why don't you... lol

Well if you had a C6 trans then you could do a full-manual valve body and possibly do away with the VRV too, unfortunately no such thing exists for the E4OD - not sure why, especially considering that for its GM counterpart (the 4L80E) there are all sort of goodies, from vacuum line pressure regulators to full-manual reverse-pattern valve bodies with transmission brake... I'd do the full-manual electric-hydraulic control to my E4OD in a heartbeat (I already have the TC lockup on full manual with automatic safety unlock in 1st and 2nd), but I hit a brick wall with the line pressure problem, if anyone can come up with an idea about that it would be awesome!

 

My shop installed a new pcm in my 92 f150 5.0 the motor still runs like crap.when the scanner is put on, no codes come up I was told that the pcm was flashed but am now having second thoughts.I have already installed a new engine temp sensor,new fuel pressure regulator,new ox sensor,new plugs and wires,dist cap and rotor,removed the egr valve and cleaned this out.shouldnt the new pcm show the codes to find the problem Thanks SouthernHunter

 

This really belongs in its own thread, since it has nothing to do with the E4OD discussion, and since that way you'll probably get more replies... and I see you already did that, thank you!

 

Exactly my thinking on the 4L80E. Maybe there just aren't enough of us out there to make the same system on the E4OD cost effective. I feel it's time for me to tear apart my E4OD and see if the answers are inside. Might as well rebuild it myself while I'm at it.

 

Well i have an interesting question. Dont believe a E40D came in a 91 f-150, however i just purchased my truck two weeks ago with one i am told. Interesting fact pertaining to the electronic controls, mine came with a Baumann Trans module, it aparantly is completely customizable program and software, down to giving an option for using the cruise control buttons for manual shift selection. ever heard of this? havent had a chance to load up the software on my buddies laptop to check it out yet

 

Well you can manually shift the E4OD without electronics at all, but you'll only get P, R, N, 2nd, and OD. Actually if you just put the shifter in "D" you'll end up in 4th cause that's what the transmission shifts into when both shift solenoids are de-energized, so in a sense that's its default forward gear - R is fully-mechanically controllerd tho so you will get that for sure no matter what, same with 2nd gear when you move the shifter into a low gear position, hydraulics take over there. But there is still the matter of the full line pressure doing damage to whatever it is that cannot handle it inside the transmission...


Yup, I've heard about it alright - the Baumann PCM is a great thing, I only wish I had one in my truck. And the E4OD came out in '89, so finding one in your '91 wouldn't be out of the ordinary - do you have the OD cancel button on the dash to the right of the steering column? That was only available on factory-E4OD-equipped trucks...

 

Yes i do have the O/D button on the dash lol. looking forward to tonight and the monkey business that will be occuring regarding the adjustments. lol