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  #1  
Old 03-02-2010, 05:02 PM
Carpe Demon Carpe Demon is offline
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Default 4.0 swap question... I am a *******.

Okie dokie. I'm sure you guys are getting tired of me... and I apologize.

I am swapping a 4.0L into the 95 you see pictured to the left. There is an insanely great and reliable salvage yard here in Mesa where I can pick up the entire engine assembly, transmission assembly and rear axle assembly for around 1.5k which is pretty great from what I can find and is certainly far more efficient I than buying a donor car.

The problem is the ECU isn't part of the engine assembly, nor is the wiring harness. The do sell ECUs separately for fairly inexpensive. Does ECU cover all needed electronics like the ICM, ECM and such? What the hell is an engine brain box? I just want to know that if I buy an ECU and wiring harness along with the engine, tranny, and axle assemblies that everything will be fine.

Additionally, do I have to swap out steering columns or anything with the steering in doing this switch?

I'm sorry, it's been so long since I learned this shit in school and I don't use it everyday so it slips, ya know?
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Old 03-02-2010, 05:07 PM
thunderbolt984 thunderbolt984 is offline
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Default anwser

yes they sell a ecu and wire harness but they are very high and they you have to have them flashed to reset everything,and then you need the number off of the old one to even get the new one because everyone is different so you might want to find a junk yard that will sell you the hole thing at a great price hell i think i have a hole set up motor trans and every thing i will have to look
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Old 03-02-2010, 05:16 PM
Carpe Demon Carpe Demon is offline
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Well the hassle certainly makes me want to just pull a whole thing out of a donor car but as far as price goes it looks like ECUs are about 200 bucks which is cheap compared to everything else I've been looking at doing to the trucks.

I just talked to the guy and it sounds like should they get in an engine a customer wants they will let them come down and take it out themselves to get the matching wiring harness and ecu and that certainly sounds like the way to go, I think. Trying to figure this out and I don't think I have the brain capacity to do it...
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1995 XLT 2.3L 5-speed, bone stock (for now, this will be different, very soon).
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Old 03-02-2010, 05:17 PM
thunderbolt984 thunderbolt984 is offline
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oh i think a 5.0 is much better then the 4.0 almost the same size you might find it a little cheaper then the 4.0
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Old 03-02-2010, 05:23 PM
Carpe Demon Carpe Demon is offline
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I was thinking of going with a 5.0 for a while but I can get a much newer 4.0L the HP rating is only like 8 points different between the last Explorer 5.0 and the newer Ranger 4.0s. I asked a bunch of people, even did a poll about the 4.0 and most say it's a pretty good engine, really reliable. As far as expense they are roughly the same. the 5.0 might be like 50 bucks to 100 different at this place but it is also 4 years older. I figured since I'm basically using used parts going with a newer model would be the best bet.

Lemme ask you, other than the slight hp increase on the 5.0 why else do you prefer it to the 4.0? Maybe there was something I missed.
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1995 XLT 2.3L 5-speed, bone stock (for now, this will be different, very soon).
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  #6  
Old 03-03-2010, 12:19 AM
jester jester is offline
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Lots more aftermarket parts for the 5.0. For me personally, I like the thought of a big 5.0 in a little truck but thats just me. If my 4.0 ever dumps on me I might look into going 5.0
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Old 03-03-2010, 04:34 AM
SCRATCHBGONE SCRATCHBGONE is offline
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got a 4.0 love it but still been building a 5.0 on the side for swap
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Old 03-03-2010, 11:26 AM
Carpe Demon Carpe Demon is offline
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Yeah, as I told someone in PM once the Coyote 5.0s are out I will have no problem dropping one of those in a Ranger. 400hp nearly twice the rated amount that 5.0s used to be, that's tight. In a year and a half it's very likely I will start looking into swapping one of those into the Excab I pick up. One of those in a small truck is down right violent.

As it stands there's a decent aftermarket for 4.0s. I'm not looking to make a Drag truck here I'm building a Prerunner here. From what I understand the exhaust manifolds on the 4.0 breathe pretty well already, so throw on an aftermarket cat back system, couple of bolt on engine mods and even biggest case get the supercharger they make for the 4.0. Sure there may not be a lot of options but there are options out there and pretty viable ones.

The 5.0 may have better aftermarket support thanks to the Mustang, no doubt about that, but I guess there's not a whole lot of difference. I'm not looking to turbo charge the Ranger, like I said I'm not looking to build a 10 second truck or anything. Something that can get good speeds and can tear it up offroad.
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