swapping motors

[jeremy cato]

I pulled a 98 Ford Ranger XLT 4.0L motor out and put it in a 96 ford ranger splash that had a 4.0L. The 98 is a base model and the 96 was loaded( electric doors, windows, tilt steering and such but it had an automatic in it and the 98 has a manual tranny that went into the 96 with the 98 motor. Now, I'm having issues with the wiring harnesses. I have an extra altenator plug but I'm missing the temp. sensor. I'm lost.

 

[RonD]

Welcome to TRS

When you swap same model engines, but of different Years you need to swap over the upper and lower intakes with fuel injectors, from the old engine to the "new" engine
This is to match fuel systems and wiring
1998, and up, Rangers used 55psi fuel system, 1997 and older use 35psi

Manual or automatic don't matter as far as engine
Vehicle trim, XL or XLT, don't matter

Engine wiring harness and fuel system matter
You will need to get a 1997 upper and lower intake with injectors if the old one is gone
1998 4.0l would only have 1 connection for fuel line
1997 would have 2 connections


Wouldn't be any change in alternators?
So not sure whats up with that
Alternators would have 1(or 2) larger wire connected to B+, stub/nut terminal
Then a 3 wire connector with Yellow wire, White(short jumper) wire and light green wire for the internal voltage regulator
Short White wire plugs in to a single spare terminal on the back of alternator

1998 was first year Ranger had a MEGA Fuse on the outside of the engine fuse box
1997 used a Fusible Link instead
This was for the Alternators B+ wire
So if that's the extra wire that comes out by the fuse box, then you need to get a 12guage Fusible link to hook that wire to the Battery Positive post on starter relay