What to choose, what too choose...

[jaymegriffiths]

What are the downsides of swapping a awd aerostar 4 liter, tranny, and t-case? i know its recommended to use a pre- 93 4 liter but availability rules in this case. i can take it home for 200 bucks and i took lotsa pictures. its obd 2 which i believe most of you are not very impressed at swapability. AD i know your gonna help out right? i mean your the one who insisted a 4 liter was the way to go especially in a 4x4. my 2.9 4x4 is majorly underpowered and curently not on the road so now is the time to start. do i buy the 4x4 4 liter in the van, or buy a 2wd 4 liter to use. theres nothing i've found so far with decent km's everything is around 350000 to 400000 so they are pretty much done anyways. is OBD2 a rediculous waste of time or something to try?
pics here we go!

 

[bobbywalter]

only downside i see is the t case....easily remedied with a manual ranger t case.





do it, get it done

 

[jaymegriffiths]

only downside i see is the t case....easily remedied with a manual ranger t case.





do it, get it done

ok back that up. only downside is case? obd 2 can be done without a HUGE rewiring?
my truck currently has a 2.9 and e-shift t-case would it be possible to retain my stock t-case? or could i wire the new t case from the aerostar to work with th aerostar t case?
if i decide to go this route im gonna pick up shop manuals for both, hopefully other members can help me out... definitily gonna need help with this one!
good friends and smart buds gonna get me through this one.

 

[AllanD]

The engine other than the management and Exhaust manifolds is identical to a '95-96 Ranger/Explorer 4.0 engine.

The Trans? is either a 4R55E or a 5R55E, I'm not familiar with the codes used.

The T-case? Is a Dana TC28 it has a planetary center differential that is regulated
with an electro-magnetic lockup clutch. the output at both ends is a slip yoke
the rear slip yoke is the same as an A4LD output the front is similar to
the B-W 13-50 T-case.

an OBD2 4.0 with that trans and T-case wouldn't be anywhere on my top ten list of "ideal donors" for an EEC4 Ranger.

AD

 

[jaymegriffiths]

The engine other than the management and Exhaust manifolds is identical to a '95-96 Ranger/Explorer 4.0 engine.

The Trans? is either a 4R55E or a 5R55E, I'm not familiar with the codes used.

The T-case? Is a Dana TC28 it has a planetary center differential that is regulated
with an electro-magnetic lockup clutch. the output at both ends is a slip yoke
the rear slip yoke is the same as an A4LD output the front is similar to
the B-W 13-50 T-case.

an OBD2 4.0 with that trans and T-case wouldn't be anywhere on my top ten list of "ideal donors" for an EEC4 Ranger.


AD

True nuff.
Im lookin at all those wires and thinkin, this is gonna end up a mess that isn't ever gonna function. im gonna keep lookin. thx for the advice AD but i think what i was really looking for was someone to say dont do it. cause realistically i rather not depend on the internet for the entire thing.
im also dealing on a 92 sploder which i would have to say would be ideal, sept its auto and i'd like a standard but my stock one will probably not like the extra torque so unless something pops up im still searchin.

 

[Bent Bolt]

True nuff.
Im lookin at all those wires and thinkin, this is gonna end up a mess that isn't ever gonna function. im gonna keep lookin. thx for the advice AD but i think what i was really looking for was someone to say dont do it. cause realistically i rather not depend on the internet for the entire thing.
im also dealing on a 92 sploder which i would have to say would be ideal, sept its auto and i'd like a standard but my stock one will probably not like the extra torque so unless something pops up im still searchin.

From my point of view, OBD2 is a much better management system than EEC4. They just have more wires. Have the wiring diagrams for both vehicles and a good basic understanding of how the different systems work ( Fuel, spark, O2's and whatnot ) and you're good.

 

[jaymegriffiths]

From my point of view, OBD2 is a much better management system than EEC4. They just have more wires. Have the wiring diagrams for both vehicles and a good basic understanding of how the different systems work ( Fuel, spark, O2's and whatnot ) and you're good.

wouldn't it be eaiser to find a donor without obd2 and save my self time. cause i think finding the right tranny/tcase combo is going to be expensive and tiem consuming. add that to the numerous hours of wiring ill need to figure out and you've got a never finished project. i think waiting a little to get a more suitable donor would be better, as i still need funds to buy patch panels for the rust so it can pass safety, tires, brakes, tie rods, and other broken pieces maybe wheel bearings i know they are somewhat common, the list goes on. point is theres no big rush, i have til winter so lots of time. and even if it doesn't get done i have my other truck to drive til it is. so im gonna wait and figure something out.

 

[AllanD]

swapping an OBD2 engine into an earlier vehicle is something that while possible is far from practical.

It isn't the "quality" of the management system but the implementation of it
and the practicacility of installing the necissary components.

Anyone who says "go for it" has never dealt with EEC5/OBD2 evaporative emmissions issues.

It's a PITA on a vehicle designed for it, retrofitting that shit onto a
vehicle that never had it?

How about you get despondent and kill yourself now and save all
the painful intermediate steps?

a 1992 would be a good donor, but why do you thing it's all
gotta come from ONE donor?

If it's all good on ONE donor vehicle why is it available?

MOST 4.0 engines are "available" because they are bolted to a DEAD A4LD.

The engine management wiring is the same year to year for the 4.0
the bits that make a 4.0 wiring harness "Manual" or "Auto trans"
(One small sub harness) is removeable....

The other issue with OBD2 is that all the OBD2 4.0's have SEFI.
the theory of SEFI is "nice" the reality however is almost irrelevant
and the fact that to have SEFI means you get to live with an EXPENSIVE
and FAILURE PRONE Camshaft synchronizer....

Not to mention that all SEFI 4.0's also have EGR.
Operationally EGR is a moot point, but the FAILURE PRONE DPFE
sensor makes it somethign I didn't want...

If you wanna split the differences get a NON-EGR 1994 or a 1993 4,0 engine and wiring.

AD

 

[fastpakr]

Allan - while we're on the topic, do you know if the later plastic body DPFE sensors are any better than the early metal body units with the square connector?

 

[jaymegriffiths]

swapping an OBD2 engine into an earlier vehicle is something that while possible is far from practical.

It isn't the "quality" of the management system but the implementation of it
and the practicacility of installing the necissary components.

Anyone who says "go for it" has never dealt with EEC5/OBD2 evaporative emmissions issues.

It's a PITA on a vehicle designed for it, retrofitting that shit onto a
vehicle that never had it?

How about you get despondent and kill yourself now and save all
the painful intermediate steps?

a 1992 would be a good donor, but why do you thing it's all
gotta come from ONE donor?

If it's all good on ONE donor vehicle why is it available?

MOST 4.0 engines are "available" because they are bolted to a DEAD A4LD.

The engine management wiring is the same year to year for the 4.0
the bits that make a 4.0 wiring harness "Manual" or "Auto trans"
(One small sub harness) is removeable....

The other issue with OBD2 is that all the OBD2 4.0's have SEFI.
the theory of SEFI is "nice" the reality however is almost irrelevant
and the fact that to have SEFI means you get to live with an EXPENSIVE
and FAILURE PRONE Camshaft synchronizer....

Not to mention that all SEFI 4.0's also have EGR.
Operationally EGR is a moot point, but the FAILURE PRONE DPFE
sensor makes it somethign I didn't want...

If you wanna split the differences get a NON-EGR 1994 or a 1993 4,0 engine and wiring.

AD

I agree, obd2 seems like a huge pita. i think i will look longer for an older eec4 donor. and the reason for the donor being 1 vehicle, its because around here, a donor can be had for about 2 or 3 hundred bucks. just takes a little time. however, an engine at a recker is 2 hundred or more depending on the recker, but nonetheless more money, plus wiring, tranny, t case. its just cheaper and easier to wait for what i want to come to me.

 

[np24]

If the engine is low on miles and run great, pick up the engine. just look for a 92 and get the harness and ecm for it. you would be losing the sefi, egr and obd2, but it would be a lot easier to install. then just get a transmission to your liking and a t-case to match. i'm not too familiar with how the electric t-case works, if its independent of the ecm, you can still use yours. i know its has its own controller, but i don't know what else it ties into.

 

[bobbywalter]

What are the downsides of swapping a awd aerostar 4 liter, tranny, and t-case? i know its recommended to use a pre- 93 4 liter but availability rules in this case. i can take it home for 200 bucks and i took lotsa pictures. its obd 2 which i believe most of you are not very impressed at swapability. AD i know your gonna help out right? i mean your the one who insisted a 4 liter was the way to go especially in a 4x4. my 2.9 4x4 is majorly underpowered and curently not on the road so now is the time to start. do i buy the 4x4 4 liter in the van, or buy a 2wd 4 liter to use. theres nothing i've found so far with decent km's everything is around 350000 to 400000 so they are pretty much done anyways. is OBD2 a rediculous waste of time or something to try?








thats is as simple as it gets for me. so i am puzzled a bit.


it appears to me you can score a complete running donor for 200 bux.

your shit currently dont even work......when it does you feel its underpowered?



do it, get it done. its really that simple.



you have it all right there and it works. but you only need what is required of the eec system to operate. you already have an operational t case so its a done deal as far as the physical installation being anything other then bolt in, no driveshaft mods ect to add costs...run the auto trans till it dies and hopefully by then you will already have had an m5 waiting to replace it sittin in the garage covered with dust. the radiator and auto tranny cooling will have added costs potentially.....but thats up to you.



simply put low mile worthy 4.0 90-94 engines ar gonna be hard to find, so eec5 it is.


your best money is a complete powertrain from as current a wreck you can get...say 04 up cammer....i have seen these go for 1300-2000 complete with under 25 k on them.


7-10 years ago obd2 wasnt worth it.....today it generally pays in dividends....tuning it yourself is cost effective now as well....

 

[bobbywalter]

swapping an OBD2 engine into an earlier vehicle is something that while possible is far from practical.

It isn't the "quality" of the management system but the implementation of it
and the practicacility of installing the necissary components.

Anyone who says "go for it" has never dealt with EEC5/OBD2 evaporative emmissions issues.

It's a PITA on a vehicle designed for it, retrofitting that shit onto a
vehicle that never had it?

How about you get despondent and kill yourself now and save all
the painful intermediate steps?

a 1992 would be a good donor, but why do you thing it's all
gotta come from ONE donor?

If it's all good on ONE donor vehicle why is it available?

MOST 4.0 engines are "available" because they are bolted to a DEAD A4LD.

The engine management wiring is the same year to year for the 4.0
the bits that make a 4.0 wiring harness "Manual" or "Auto trans"
(One small sub harness) is removeable....

The other issue with OBD2 is that all the OBD2 4.0's have SEFI.
the theory of SEFI is "nice" the reality however is almost irrelevant
and the fact that to have SEFI means you get to live with an EXPENSIVE
and FAILURE PRONE Camshaft synchronizer....

Not to mention that all SEFI 4.0's also have EGR.
Operationally EGR is a moot point, but the FAILURE PRONE DPFE
sensor makes it somethign I didn't want...

If you wanna split the differences get a NON-EGR 1994 or a 1993 4,0 engine and wiring.

AD

while i have to say this is an outstanding answer, and as fact as it gets.....i am lost on one aspect

It isn't the "quality" of the management system but the implementation of it
and the practicacility of installing the necissary components.

Anyone who says "go for it" has never dealt with EEC5/OBD2 evaporative emmissions issues.

It's a PITA on a vehicle designed for it, retrofitting that shit onto a
vehicle that never had it?

How about you get despondent and kill yourself now and save all
the painful intermediate steps?

as opposed to retrofitting a powertrain to a truck that never had it?











i have worked with all the 4.0's now, and admit that this one particular aspect of the evaporative emmissions.....well saying it is a cantankerous assbiter is being polite as i get...it sure as hell isnt a deal breaker.



this kid said he wanted to be talked out of it...soo i guess

 

[jaymegriffiths]

while i have to say this is an outstanding answer, and as fact as it gets.....i am lost on one aspect







as opposed to retrofitting a powertrain to a truck that never had it?











i have worked with all the 4.0's now, and admit that this one particular aspect of the evaporative emmissions.....well saying it is a cantankerous assbiter is being polite as i get...it sure as hell isnt a deal breaker.



this kid said he wanted to be talked out of it...soo i guess

i really am having a hard time deciding what to do. its either wait around, let the deal pass, and hopefully find something down the road to make work. theres gonna be a lot of money thrown at this truck to get it through safety so i have a while to figure out the wiring. maybe its a good idea to buy a 2.9 wiring harness and switch everything over while its out of the truck and when i swap it in it will be quicker. BW: how much do you know about vap systems on abd2? i dont wanna start this and have to hunt for 5 hours to figure out what the "green and white wire" is...
I talked to my dad and he REALLY doesn't think i should use obd2. and usually when he doesn't want me too it is a huge time kill. i think for now i am gonna see if anything else comes up. It needs to be safetied first anyways.Plus 200 bucks aint that great a deal...

 

[bobbywalter]

the 96 application ist bad. its when leaks develop from cracked lines or shitty gas cap/ect and cause sometimes untracable drivability nuicsance with age that things get pissy....


but modern tuning has options.