4.0L ohv to 4.0L sohc - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #26  
Old 09-04-2009
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5spd of course lol
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  #27  
Old 09-04-2009
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lol

well if i had money.. fack

i want it. I had a blown head gasket and its running on that "bars head gasket repair" **** and i dont trust it one bit.. and i have some weird sputtering and **** goin on too.
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  #28  
Old 09-04-2009
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Quote:
Originally Posted by Ranger_Envy View Post
3k seems really high. Couldn't you of done a v8 swap for that? I'd think you could of bought a junked out v8 exploder for $500-1000, freshened everything up and had it in your truck for another $2k.
A v8 swap isn't the answer to everything. I don't want and certainly do not need a v8 ranger, I'm just fine with a v6 ranger...thus the reason I put about $1800 into my '06 4.0L w/ 1,000miles swap. There's more costs involved with a 5.0 swap anyway too that you MUST do(trans, tcase, shafts, adaptors, etc). I see that supposed $2500-3000 figure being surpassed somewhat easily.


AGAIN....are you starting with a very very very low mile 5.0? no...no your not.
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  #29  
Old 09-04-2009
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yeah seriously its to much custom work a sohc swap is alot easier now that im almost finished, I see that a v8 would have been way to much work then even harder if i wanted 4X4 and 5spd......which i should remind everyone is a must in EVERY truck. Also for those who want pictures I will post an update on the swap very soon. :)
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  #30  
Old 09-20-2009
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Alex.....are we on the road yet? Give us an update man!
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  #31  
Old 09-20-2009
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in 1999 they switched the tcase flange from 2.5 pattern to 3" bolt pattern. just use the one off your old tcase
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  #32  
Old 09-20-2009
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With those miles its still just a baby. If it makes you feel any better, my 09 has more than 3 times the miles your 03 engine has.

Milage is gonna suck until you get around 5000 miles, after that it isnt so bad. However with the extra power i bet the truck is gonna feel like a beast compared to the old one. My 4.0 isnt a sports car but its no slouch for sure.
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  #33  
Old 09-23-2009
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hey sorry for keeping you guys waiting no pictures this time but i will post up soon, the motor swap is done, and here are a few details until i can make a more descriptive post. but anyway i used the same Y pipe except i just cut it up and welded it to fit. as for the drive shaft, i used the front yoke from an explorer driveshaft. i found that one of the fuel rails had a leak in it so i brazed it for now it will hold for the time being until i can afford to get a new one next week lol, one big thing that gave me alot of trouble was the pats system and getting that wired up. i actually had to tow it to a dealership so they could reprogram my key and the computer together. but all in all it starts right up and runs fine, nice and smooth shifting. although the speedo doesnt work right as well as the mileage gauges are also off as well b/c of it, and the check engine light is on 3 codes but i will make another update tomorrow
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  #34  
Old 09-23-2009
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cool cool. can't wait for the update.


They couldn't eliminate the PATS because your truck didn't have it in the first place?
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  #35  
Old 09-25-2009
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Here's a summary of the swap, without pictures. The '03 SOHC was bought with all wiring, all accessories, a steering column with a PATs key and module, and an '03 PCM, allegedly from the same vehicle. The '03 bolts right up to the '98 motor and trans mounts, but the Y pipe must be modified to clear the front driveshaft on 4X4 models, and must be modified to connect to the exhaust system in its stock position. The engine harness bolts right into the body harness from the '98 although the PATs system is not present in the '98 wiring and must be fabricated from the PATs module under the key in the steering column. Luckily it's only four wires. The alternator must also be wired into the '03 harnes where it goes into the PCM. The PATs key cylinder and module from the '03 fit right into the '98 steering column, and only the module needed, as said above, to be wired into the PCM. The bottom radiator hose works but the top does not (need an '03 hose). The '98 ox sensors will plug in if the little keyed tabs are removed, but I believe they're responsible for the MIL light. I'll change those with SOHC sensors soon. You may need a front yoke from a later model to bolt up to the trans/xfer case; the front driveshaft requires no mods.

There is a good deal of manual labor involved, but it's very rewarding when it all comes together and the engine roars to life for the first time in four years.

Essential: PATs key, module, and PCM FROM THE SAME 4.0 SOHC VEHICLE. Recommend a new A/C hose from an '03, which routes in front of the engine (the OHV routes behind). Plan the Y pipe cuts and welding to include the front driveshaft on a 4X4.

Currently we are working on finding the reason the speedometer only goes to 30MPH and no higher. We plan on swapping in a GEM module from a '97 explorer which had a SOHC and was a 4X4 to see if the SOHC receives different messages than an OHV as regards the VSS output.

Will keep you posted.
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  #36  
Old 09-25-2009
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Are you using the transmission speed sensor? Or the rear axle speed sensor for your gage?




Awesome update man. This will surely help those whom have become interested in swapping for the newer 4.0.
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  #37  
Old 09-26-2009
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yeah its the rear axle sensor i think. i used that gem got the speedo to work but since the explorer that it came from had auto 4x4 the 4x4 didnt work after that so i need to find and explorer that has electronic 4x4 with the sohc and then everything should be good and the oxy sensors arent really much of anything

Last edited by Alex98; 09-26-2009 at 02:54 PM.
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  #38  
Old 05-12-2010
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got everything taken care of except the airbags dont work and the 4x4 lights flash but whatever i have a 1354m so who cares heres a vid of the motor running and exhuast which sounds better now. the motor now has 15,000 miles and runs so smoothly. \

here is a vid of the motor and exhaust. http://s49.photobucket.com/albums/f2...t=100_1970.flv
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  #39  
Old 06-05-2010
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alex98,
You did it.
I m following your foot step. I hope you can help me with electrical wiring.
thank you
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  #40  
Old 06-26-2010
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yea sure what did ya need?
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  #41  
Old 03-11-2011
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alex,
It has been a whle i was not posted, is this ok if i email you my problems wth my ranger?
thanks' alot
I swaped the engine but the engine won't start.
I had 2000 ranger (4.o ohv) and swap with 4.0 sohv (2006) i had wiring on 2006 sohc but not the key to sohc.
now the truck won't start.
is there any wiring problems?
thank...
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  #42  
Old 03-12-2011
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pats is your problem did you get the pats system and keys from the donner truck?? if not tow it to ford and have em reprogram the computer
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  #43  
Old 03-18-2011
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I will tow my truck to the dealer this weekend.I must notify dealer to do it.
see how it goes.
Thanks guys
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  #44  
Old 01-10-2012
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finaly done conversion from 4.0 ohv to 4.0 sohc
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