4.0 sohc wiring diagram?

[beejium]

Can any one give me wiring diagrams for the 4.0 sohc engine? Looking to swap out the old ohv and replacing it with the sohc. I could rebuild the old ohv, but I was thinking the sohc would be a nice upgrade.

 

[AllanD]

I don't want to insult or discourage you, but what you are asking is the automotive equivelent of asking "please hand me that piano".

what YEAR 4.0SOHC?they are all EEC5, but not all EEC5 4.0SOHC's are the same...
The early ones used a conventional fuel system while the later ones ran the newer "returnless" fuel system.

The early ones were never offered with a 5sp so I've gotta ask what trans do you have now?

IF you have an auto you MUST use the 4R55E with the SOHC or the computer will (literally) have a nervous breakdown if you connect anything else to it.

what YEAR 4.0 OHV truck are you planning on doing this to?

While anything is possible (I've seen a Rolls-Royce "Merlin" engine fitted into a '57 chevy)
not everything is "practical"


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[beejium]

Sorry my fault... I was home on lunch break and not thinking clearly. Its a 94 ohv with the 5 speed 4X4 (M50D-R1?) with 255,000 miles. Am I right in thinking the harness would have to be from a 01' and up? If not feel free to hit me over the head with that piano a few times.

 

[AllanD]

THE problem with a 4.0 SOHC is that they are ALL EEC5 and that alone should intimidate you.

The fact is there are so many interlocking systems
(a loose gas cap will trip a check engine light) that
you'd be forced to retrofit onto your Explorer to make it impractical.

That and the fact that to get those extra 50-ponies the 4.0 basically loses it's bottom end balls.

Where the 4.0OHV is really nice is below 2grand.

Kiss that goodbye if you switch to a SOHC.

all things considered it's actually far easier to switch to a V8.

I'm not saying it's impossible.
I am saying that "practical" is something you need to determin for yourself,
but you need to be properly informed to make that choice.

"informed" is something you really need to achieve yourself as my giving you
the answers... well my answers work for me, they may look different to you.

Frankly I've already up-converted my '87 Ranger to a /93 4.0 and
thus I currently have a vehicle that's electronically different from
yours in what ammount to trivial ways. and I say that only to make
the point that if I really wanted a vehicle with a 4.0 SOHC I'd buy
one with that engine already in it

Of course I can't afford a case of beer right now, so you may factor that into
your estimation of the value of my advice...

AD

 

[beejium]

THE problem with a 4.0 SOHC is that they are ALL EEC5 and that alone should intimidate you.

The fact is there are so many interlocking systems
(a loose gas cap will trip a check engine light) that
you'd be forced to retrofit onto your Explorer to make it impractical.

That and the fact that to get those extra 50-ponies the 4.0 basically loses it's bottom end balls.

Where the 4.0OHV is really nice is below 2grand.

Kiss that goodbye if you switch to a SOHC.

all things considered it's actually far easier to switch to a V8.

I'm not saying it's impossible.
I am saying that "practical" is something you need to determin for yourself,
but you need to be properly informed to make that choice.

"informed" is something you really need to achieve yourself as my giving you
the answers... well my answers work for me, they may look different to you.

Frankly I've already up-converted my '87 Ranger to a /93 4.0 and
thus I currently have a vehicle that's electronically different from
yours in what ammount to trivial ways. and I say that only to make
the point that if I really wanted a vehicle with a 4.0 SOHC I'd buy
one with that engine already in it

Of course I can't afford a case of beer right now, so you may factor that into
your estimation of the value of my advice...

AD

Thanks, much easier than looking through the harness... I think i'll just rebuild it and fix it up for winter. The 4.0 isn't a bad motor, just seems to be a higher maintenance than the ford 2.3 turbo i put in my s10. You read that right, I put a ford 2.3 in a 82' s10. i kinda smashed up my old mustang and the s10 was sitting there so the engine went in.