a4od to e4od
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From: Melbourne FL.
a4od to e4od
Hey i was wondering if a ford e4od will work in a truck that had a a4od in it. What would i have to do to make it work. Im pretty sure it will bolt up to the motor but what wireing would i have to add to the a4od truck. By the way the truck with the a4od is a 93 2wd f150 and the other truck is a 94 4wd f150 both with 302s. I am going to use the 94 for truck as a donner truck to make the 93 truck 4wd if the tranny will work, so i will have the wireing harness for the e4od. Also does anyone have a opinion about which tranny is better?
thanks
john
thanks
john
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From: Gulf Shores, AL
I believe you mean AOD, to my knowledge an a4od was never made. To answer you question yes it will work BUT however, you will need to also swap the computer out. The AOD stands for Automatic Overdrive. This tranny is not what you would say computer controled. An E4OD stands for electronic 4 speed with overdrive, this one is completly computer controled. I believe you will be ok with swapping the computer out of your donner truck into your 2wd. As far as which one is better, neither were, lets say, Fords strong trannys. 6 one way one half dozen the other. Let us know how things go.
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From: Melbourne FL.
ya my tranny is a 4 speed automatic i guess u could call it a 3 speed with overdrive but it has a total of 4 gears. so the e4od has 4speeds and overdrive or is it like the AOD but electronically controled? sorry for the mis understanding. but u guys think that all ill have to replace is the control unit and add any other wires goin from the tranny to the control unit. also my truck(the 2wd one) has a MAP sensor (i belive its also called speed density) on it and the doner truck has MAF sensor on it. so if i change the contol units out, then i would have to put the MAF on my truck as well? not that i would mind because i planed on putting headers and other stuff on my truck later and i kno that that doesnt do anything unless the computer knows that the truck is getting more air.
thanks
John
thanks
John
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From: geneva IL
the E4OD runs off your pcm so you might want to take all the wire harness out of the other truck and use that and the mass air wiring will be there and the wiring for the fuel injectors are wired diffrent too on the speed density than the mass air set up
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Elder User
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From: Melbourne FL.
ok thanks. so is it just a matter of hooking up the 94 harness on the 93 or is there more to it than that? but other than swaping the pcm and the wireing harness that e4od should work then. right? (just clearing things up).
thanks
John
thanks
John
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From: Calhoun GA
Yes, the E4OD is like the AOD in that both are overdrive transmissions, but the E4OD is electronically controlled. The E4OD is a bit heavier than the AOD but it's also stronger. As mentioned above, you'll need to get the PCM and associated wiring to operate that trans. There is a catch though...if you look at the donor truck, on top of the rear end, there is a speed sensor and inside is the exciter ring. Those pieces are needed to allow the transmission to shift properly. You could pull it apart and remove those pieces or just use the whole rear end and save your self the time and mess. Good luck!
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From: Melbourne FL.
thanks. i planned on taking the rear end out of the donner truck anyhow just to make sure that the front and rear ends had the same gear ratio. But i have a stupit question, what is the PCM is it the engine control unit or a seperate thing. And if it is ill still have to swap ECUs too right for the mass air flow and becuase of the new tranny?
thanks
john
thanks
john
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From: West Mansfield, Ohio
The E4OD is an electronically controlled 4 speed with overdrive, which was later renammed the 4R100 (4 speed with reverse, capable of handling 1000 ft-lbs of torque input.) The AOD was a weaker transmission, which was not electronically controlled. Later on, it was given electronic controls much like its big brother 4R100, and renamed the 4R70W (4 speed with reverse, capable of withholding 700 ft-lbs or torque input.) That tranny had overdrive also.
PCM is the "Powertrain control module"....... aka the ECM, ECU, THE COMPUTER! It's all the same! I guess I'm curious to why you'd want to make the 93 a 4wd. What is wrong with the donor truck? Just curious to know why... no biggy!
As for your reguards about the MAF, I honestly do not know. My 95 did not come with MAF because of the E4OD. I don't know if the MAF and E4OD did not get along until 96 when MAF was used, or if it had to do with the fact that my truck has a 351. Nevertheless, I would look into that. Does the donor truck with the E4OD have MAF?
PCM is the "Powertrain control module"....... aka the ECM, ECU, THE COMPUTER! It's all the same! I guess I'm curious to why you'd want to make the 93 a 4wd. What is wrong with the donor truck? Just curious to know why... no biggy!
As for your reguards about the MAF, I honestly do not know. My 95 did not come with MAF because of the E4OD. I don't know if the MAF and E4OD did not get along until 96 when MAF was used, or if it had to do with the fact that my truck has a 351. Nevertheless, I would look into that. Does the donor truck with the E4OD have MAF?
Last edited by handyman43358; Mar 13, 2006 at 07:35 PM.
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From: Melbourne FL.
ok thanks for the clear up. but my truck, the 93, is in just about perfect shape strong motor, good paint, nice interior, just one little ding and the 94 is from up north(im in florida) and is rusted out pretty bad and dinged up pretty bad. also i can get it pretty cheap and it would be hard for me to find a 4x4 truck in as good as shape as mine compared to the cost and time of this whole project. i also figured that i could sell some of the parts from my truck ,such as the tranny, to get some of my money back.
thanks
John
thanks
John
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From: Melbourne FL.
Originally Posted by handyman43358
Does the donor truck with the E4OD have MAF?
yes it does and i belive it is stock. but im not positve on that. but the truck does have headers on it so the person who had it b4 me may have added that along with the headers.
thanks
John
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From: West Mansfield, Ohio
I see! Well I hope all goes well for you!
I would make sure that your donor truck had MAF with the E4OD. I do know that they used MAF on 302's, but I THINK they only used them with the AOD transmission. I've never seen MAF used with a 302 or 351 with the E4OD until 96. But remember, just because I haven't seen it, doesn't mean it doesnt exist!
I would make sure that your donor truck had MAF with the E4OD. I do know that they used MAF on 302's, but I THINK they only used them with the AOD transmission. I've never seen MAF used with a 302 or 351 with the E4OD until 96. But remember, just because I haven't seen it, doesn't mean it doesnt exist!
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From: Calhoun GA
Yes there are many mid/late 90 model F-series pickups with E4OD's. Most, if not all, E4OD equiped pickups were 4x4's. My brother's 94 F-150 5.0 4x4 came with an E4OD. Given the info, I would say that the donor truck is mass air equiped. Just look at the at the air box to see if the it has an aluminum air meter housing mounted to it. You'll need to get the entire engine harness, air meter, PCM and associated ductwork. Like I said before, the sensor (also called a pickup) and exciter on/in the rear end are needed to allow the E4OD to shift properly. If the donor truck has an OD OFF light/button, then chances are good that it is an E4OD.
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From: West Mansfield, Ohio
Actually I think most 4wd trucks of this era were E4OD. There were many 2wd E4OD equipped trucks. I get what you're saying though.
The question here is, did those E4OD equipped 4x4 trucks come with MAF 302's?
The question here is, did those E4OD equipped 4x4 trucks come with MAF 302's?