Engine swap


Bachwalk

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Location
Indiana
Vehicle Year
1999
Make / Model
Ford Ranger
Transmission
Automatic
Hello and thanks in advance, I am replacing the 4.0 in my 99 with a 2002 4.0, the motor came with all the wiring harness on it. All but one of the plugs look the same. It has two yellow wires in the connector where my original has only one. Not sure what it goes to. The connection is under the master cylinder, the round plug is on the replacement engine.
 

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RonD

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canada
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1994
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Ford
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Not sure, maybe ABS, rear only or 4-wheel depending on which each vehicle had

RABS did have just one yellow wire to proportioning valve switch in 1998, also light blue, black/pink and black/white wires
 

fastpakr

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V8 Engine Swap
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Location
Roanoke, VA
Vehicle Year
1999
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Automatic
2WD / 4WD
4WD
Tire Size
285/75-16
Your engine to body harness connector should be in that location, and the square connector with rounded corners looks like what I have on my '99. Did the '02 also come out of a Ranger? Just curious, as one of the odd issues with my own swap was Ford reversing the engine/body sides of that connector between the Explorer and Ranger.
 

Bachwalk

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Location
Indiana
Vehicle Year
1999
Make / Model
Ford Ranger
Transmission
Automatic
Your engine to body harness connector should be in that location, and the square connector with rounded corners looks like what I have on my '99. Did the '02 also come out of a Ranger? Just curious, as one of the odd issues with my own swap was Ford reversing the engine/body sides of that connector between the Explorer and Ranger.
Engine came out of a 2 wheel drive Ranger, mine is four wheel drive. I hope it isn't something to do with the transfer case. I'm trying to find a wiring diagram for the 2002 to see what the yellow wires are.
 

fastpakr

Forum Staff Member
Forum Moderator
U.S. Military - Veteran
V8 Engine Swap
TRS 20th Anniversary
Joined
Aug 6, 2007
Messages
4,579
Reaction score
150
Points
63
Location
Roanoke, VA
Vehicle Year
1999
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Automatic
2WD / 4WD
4WD
Tire Size
285/75-16
Shouldn't have anything to do with 2 or 4wd. Can you use your 99 engine harness and sensors on your 02? Ideally that's the best solution.
 


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