What's up guys, I just thought I'd tell you guys you'll be seeing more of me in here again. It's been a while since I've been here, but I'm finally going to fix my BII by swapping in a 4.0 and some new rims and a new interior (cloth seats? haha, I'm a leather man). So other that that, I just wanted to say hi to a few familiar faces, and I'll see you on the boards!
BTW - If anybody has 4.0 swap tricks or anything, throw them in here if you would. I'm getting my 4.0 on Friday complete with all wiring, computer, and everything.
Copied and pasted from another forum I'm on, and no, I didn't do this write-up....
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The easiest way to make a 4.0l plug and play on a B2/Ranger.
The Bronco must be an 89 or 90. You need to have the big white bulkhead plug on the firewall. I believe they started this in 89. I don't remember the 88 I cut up having this.
The donar 4.0L engine, must come from a 90-92 Ranger.
The bulkhead plug pinouts I believe are the same.
What you will need from the 4.0L ranger donar.
1. all engine harness. Including the distribution box and headlight harness, starter relay, and harnesses going to the ECU.
2. 4.0L engine and all accessories.
3. 4.0l Y-pipe.
4. Fuel line from engine to filter. (1990 B2's use the same fuel line from the filter to the connection for the fuel rail. Same connectors as the 4.0L so the fuel line is a plug in, on 90 B2 models only.)(89 models will have to splice the return line)
5. Purge valve from the 4.0L ranger. (for the charcoal canister)
6. ALL Battery connections also to include the ground.
7. Transmission, (Auto for Auto or manual for manual. If your keeping your trans then the FM146 will need the 4.0L clutch parts.) Master cyl is recommended, as the slave fittings at the end of the hose could be different.
From the 2.9L swap I did on the ranger and the 4.0L swap on BIV, these are the things I have noticed.
This is the easiest plug and play that I know of. All others will have wire splicing involved.
One other thing to note is that between the 90 model B2 and the 91 ranger they changed the interior plugs for the heater controls. Wire colors are the same however but the plugs have been switched around. Splicing may be needed here, inorder for the heater controls to work.
That is the Plug and play swap for the B2's.
This would have been the way the rumored 4.0L B2 would have been done. This will net you the most factory look ever. People will wonder if you have the factory 4.0L equipped B2.
That looks pretty good, I've been reading up on this a lot, and that seems to be the easiest way to make it sound, haha. The engine that I'm getting is from a 92 Explorer. What is the starter relay though? Does anybody know where that's at?
The starter relay is near the battery. The + cable from the battery goes to one side of the relay. The starter cable goes to the other side. When you turn your ignition switch to the start possition it sends power to the relay. This closes the relay and sends power from the battery to the starter.
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Happy "Lonesome Beaver" Jack
"Jr." All Grown Up
SSRNC Member #0
I believe the "early" 4.0s and 3.0s had distributors, but in either '93 or '94, I forget which, they switched to the EDIS ignition... which is why most swaps usually are best with the '90-'92 4.0s -- unless you can pull the CPS and put a distributor in there... this I was unaware of, as far as the CPS unit being where the distributor would be... that makes me think and wonder if the 3.0s are the same, and what you can and can't do, etc.
As far as I know or have read the 4.0 has never used a distributer. I had a '92 ranger with the 4.0 and it had the cam sensor distributer-less ignition. I have seen where people have thought about useing a dist. out of a 2.9 in a 4.0 but this would involve a good deal of wireing as the computers are different.
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'07 Dodge Ram 2500 SLT, quad cab, 4x4, Cummins
'74 bronco UNCUT! 6 cyl and 3 on the tree (new project).
'73 F-250 custom 4x4 highboy, 360, np435/205
'89 BII XLT 4x4, 2.9l auto. 30x9.50 cooper st
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