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01-25-2010, 02:57 PM
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3.0 to 4.0 swap
Okay i have a 95 ranger 4x4 speed 3.0L and i have a 4.0L out of an explorer i want to put in. i believe it is a direct bolt in. but i wanted to know if i have to change the ECM or not? i know that the ECM for both a 3.0L and 4.0L are in the same location and look the same. but i want to know if i have to get a 4.0 ecm or if i can just use my 3.0 wiring harness and ecm. Help me?
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01-25-2010, 03:51 PM
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Ford Tough
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Join Date: Jan 2010
Posts: 264
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yes you will need the 4.0 ecu it should be a direct bolt in installation.
__________________
Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity."
General Geroge S Patton
2007 3.0
automatic trans, 4.10s with L/S
ported and polished TB
4brand new speakers with inslation in doors
smoked tail lights
20%tint on driver and passenger windows
5% tint on back window
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01-25-2010, 07:10 PM
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okay. so do i have to change wiring harness to?
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01-25-2010, 07:16 PM
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<<<IT LIVES!!!!
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guess is you will need the 4.0 wiring harness as well, what year is your explorer engine?
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01-25-2010, 07:22 PM
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Ford Tough
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Join Date: Jan 2010
Posts: 264
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yes if you need the 4.0 ECU and the wiring harness please dont cut and splice your stock one to make it work thats a big no no
__________________
Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity."
General Geroge S Patton
2007 3.0
automatic trans, 4.10s with L/S
ported and polished TB
4brand new speakers with inslation in doors
smoked tail lights
20%tint on driver and passenger windows
5% tint on back window
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01-25-2010, 07:30 PM
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Some assembly required...
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Join Date: Jun 2009
Posts: 921
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3.0 and 4.0 have different bolt patterns at the transmission bellhousing, so you can't swap engines without also swapping the transmissions. Depending on the year of the donor, there could be other problems as well.
__________________
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles
2003 XLT 2.3L M5OD-R1 reg cab, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid
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01-25-2010, 07:40 PM
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Ford Tough
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Join Date: Jan 2010
Posts: 264
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you should be able to get an adapter for the 4.0 to bolt to the trans you already have
__________________
Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity."
General Geroge S Patton
2007 3.0
automatic trans, 4.10s with L/S
ported and polished TB
4brand new speakers with inslation in doors
smoked tail lights
20%tint on driver and passenger windows
5% tint on back window
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01-25-2010, 07:59 PM
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<<<IT LIVES!!!!
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Join Date: Oct 2009
Posts: 300
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my main worry with this swap would be if your donor vehicle had PATS (passive anti-theft security) which could add a whole other set of problems
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01-26-2010, 09:30 AM
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Some assembly required...
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Join Date: Jun 2009
Posts: 921
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Quote:
Originally Posted by bigcountry
you should be able to get an adapter for the 4.0 to bolt to the trans you already have
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Manuals have the bellhousing integral to the transmission case so that would require a trans swap or a case swap. 4.0 manuals also come from the factory with a different set of gear ratios compared to the 2.3 and 3.0.
Automatics use a bolt on bellhousing that will physically swap between the two transmssions. However, compared to the 3.0L version, the 4.0L trans internals are upgraded for the added torque of the larger engine. Ford doesn't have the confidence to use the 3.0 trans guts behind the 4.0L. Neither would I.
__________________
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles
2003 XLT 2.3L M5OD-R1 reg cab, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid
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01-26-2010, 09:33 AM
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Posts: 44
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the 4.0 is out of a 93 or 94 explorer. it has the 5 speed and the t-case, i was planning on changing it all. i can get the harness and ecu for 100bucks from the junk yard, so since i have everything to swap i figured i wont have very many problems..we'll see
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01-26-2010, 10:58 AM
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Some assembly required...
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Join Date: Jun 2009
Posts: 921
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Lots of differences between 94 and 95. Here are some that I can think of off the top of my head. There are probably more:
- Connection of the engine harness to the body harness. 94 has a number of smaller connectors vs one large 42 pin in 95.
- 94 used a cable driven speedometer, 95 is by electric Signal Generator.
- 94 is OBD/60 pin EEC-IV, 95 Ranger is OBDII/104 pin EEC-V
- Electric transfer cases: 94 used a Shift Control Module with individual push buttons, 95 has single switch controlling through the GEM by changing voltage levels.
I'm sure that all of these can be overcome but it won't be plug and play.
__________________
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles
2003 XLT 2.3L M5OD-R1 reg cab, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid
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01-26-2010, 12:12 PM
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HMMM...Looks like it's gonna be a project for sure. Maybe i oughta wait till i get back home from Wyoming July of 2011..lol i wanted to put the 4.0 in my truck before i leave to go to Wyotech cuz all the snow and i wanted the extra power. Maybe i should just sell my truck and buy a 4.0 truck! lol
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