Help. 97 v8 swap in 2001 edge 4x4.

What's going on guys. I have a 2001 ranger edge 4x4 that had the 4.0 I got a donor explorer 1997 5.0l that I took the running motor and trans and dropped it in my ranger. I used the return line for the fuel on my stock fuel line and used a one way filter I also got the the engine completely swapped over minus a few things I need input on. What did you use for starter signal to solinode? I kept my 2001 stock body wore harness and used the 97 engine harness everything has matched except the pig take fro the ac and alternator but the stock body harness I think I have figured out what goes to what and obviously the ac pressure switch . But as of now I have just turned the key to run and jump the starter to turn it over bit get nothing but and pop like it wants to start. I check the fuel lines and have fuel pressure . I'm not a shade tree mechanic but am certified mechanic so my knowledge is good and can trouble shoot well but this build has taken me longer due to working two jobs and racing racing jet skis. But I'm tired of riding a bicycle for work lol. So any help and insight to make this build move along would be great. Ranger been dwn since July 4th. But I'm at the home stretch now. Thank you.

There are a couple places things might be mis-behaving:

On the '01, Ranger the ground for the starter solenoid relay goes through the 01 PCM as part of the PATS system, the '97 Expo PCM does not support that so you'll need to provide an alternate ground for the relay. (pin 28 on the Ranger side)

Additionally, you'll need to add a ground to the PCM at pin 13 on the Expo/5.0 side of the 42 pin connector.

Where the wiring really gets tricky is with the A/C system: The '97 Expo and 01 Ranger use completely different control logic for the a/c clutch.

On the 01, there is continuous power to the clutch relay and the PCM has 100% control of the relay. The switch on the dash simply tells the PCM you've got A/C selected.

On the '97, the PCM is simply an on/off switch in series with the high and low pressure switches. The dash switch goes to both the PCM and the relay.

I've posted in the pass a minimally invasive solution

Dude your awesome thank you I'm going go and try this now. If you got a link for that post feel free to add it I will read on it. Thank you

Win could you email me 636cardone@gmail.com I'm trying to understand which side of which harness I ground and or pin. Thank you

Ok did the ground for the pcm and the starter solinode nothing. I have to use a power probe to jump start the engine but doesn't start

But I also wondered. My 2001 ranger has type e pats? And the 97 explorer pcm didn't have pats would my truck be disable my ability to start?

Nope, PATS is internal to the PCM, and with the ''97, no PATS at all.

So, 97 Expo 5.0 wiring:

1996/97 Explorer
Circuit Pin Color Purpose
16 1 Red Lt Green PCM Power to relay
11 2 Tan/Yellow tachometer data link
915 3 Pink/Lt Blue Data Link Connector pin 10
511 4 Lt Green Brake On/Off switch
238 5 Dk Green/Yellow Power From Fuel Pump Relay (Fuel pump on signal)
658 6 Pink/Lt Green Malfunction Indicator (CEL)
679 7 Gray/Black Speed output from VSS
37 8 Yellow Continuous Power
361 9 Red Fuel Pump relay coil
29 10 Yellow/White Fuel level sender
914 11 Tan/Orange Data Link Connector pin 2
224 12 Tan/White Instrument Cluster
676 13 Pink/Orange VSS and PCM Ground
91 14 Purple/White Canister Vent Solenoid coil
926 15 Lt Blue/Orange Fuel Pump relay coil
39 16 Red/White Engine temp gauge
791 17 Red/Pink Fuel Tank Pressure Transducer (Signal)
359 18 Gray/Red Sensor reference voltage
351 19 Brown/White Fuel Tank Pressure Transducer (Power supply)
199 20 Lt Blue/Yellow Transmission Controls/Clutch Pedal Position Jumper
140 21 Black/Pink reversing lamps at transmission range sensor
107 22 Purple Data Link Connector Pin 13
23
329 24 Pink starter system at transmission range sensor
298 25 Purple/Orange reversing lamps at transmission range sensor
253 26 Dk Green/White oil pressure gauge
305 27 Lt Blue/Pink Message Center pin 5
394 28 Orange/Black Automatic ride control module pin 6
784 29 Lt Blue/Black 4WD Low Range indicator
331 30 Pink/Yellow WOT A/C relay coil
32 31 Red/Lt Blue starter system at transmission range sensor
32
463 33 Red/White Neutral switch for GEM
570 34 Black/White Ground
35 *
34 36 Lt Blue/Orange PCM Power from relay
198 37 * Dk Green/Orange Power to Pin 30 WOT A/C relay
38
191 39 Lt Green/Black Vapor Management Valve coil
911 40 White/Lt Green Transmission Control Indicator in dash (overdrive off lamp)
41
570 42 Black/White Ground

01/02 Ranger:

Pin Circuit Color
1 16 Red/Light Green
2 11 Tan/Yellow
3 915 Pink/Light Blue
4 810 Red/Light Green brake On/OFF switch input (ABS Controls)
5 238 Dark Green/Yellow
6 658 Pink/Light Green
7 679 Grey/Black Speed output from PCM
8 37 Yellow 785 Black/Light Green
9 361 Red
10 29 Yellow/White
11 914 Tan/Orange
12 224 Tan/White
13 1215 White/Light Green PATS Anti Theft Communications
14 91 P/White
15 926 Light Blue/Orange
16 39 Red/White
17 791 Red/Pink
18 359 Grey/Red
19 351 Brown/White
20 199 Light Blue/Yellow
21 140 Black/Pink
22 107 Purple
23 343 Dark Blue/Light Green PATS Anti Theft Indicator
24 329 Pink also 1093 Tan/Red? Stater signal from key switch
25 298 Purple/Orange
26 253 Dark Green/White 464
27 Not Used
28 325 Dark Blue/Orange Starter Relay Gound through PCM
29 784 Light Blue/Black 4WD Low Indicator
30 331 Pink/Yellow
31 1093 Tan/Red Stater signal from neutral safety switch
32 1216 Gray/Orange PATS Anti Theft Communications
33 463 Red/White
34 570 Black/White
35 * 347 Black/Yellow A/C Compresser control (temp?/Low Pressure?) (cycling switch then to High Pressure >> Gound)
36 34 Light Blue/Orange
37 * 348 Violet Climate Control panel to PCM "A/C" on signal to PCM
38 463 Red/White 1000 -- Red/Black
39 191 Light Green/Black
40 911 White/Light Green
41 904 Light Green/Red 1017 - Black/White
42 36 Yellow/White Alternator Continuous Power ++ check 5.0 harness, does not go through C115! Route C115 to ground


Verify your grounds and PCM power, it only takes about a half dozen wires to get your '97 PCM to light off and the fuel pump relay is almost half of those!

Sweet. So I have power to fuel pump it kicks on. I had a fuel leak. Fix that. I tested to see if I had spark and I got solid spark but no fire still. Pcm is powered and communicating to my obd2 reader not full blown snap on but a simple one. So I'm kinda at loss. Now.

I did the fuel return from thr motor added added a new line back to the fuel filter on the tank side of the filter I used the one line ad the return and then installed a one way filter is that correct from what I read?

Your addition of a fuel return from the fuel rail back to the original fuel filter area to then marry the engine's return to the return at the filter is spot on.

Any chance you've got the two fuel lines from the tank crossed? Supplying fuel pressure to the BACK of the FPR and not to the injectors? It's a very easy mistake to make. Perhaps a quick check of your fuel pressure at the fuel rail is in order.

I was thinking that all night last night but the oem connections on the engine and the truck side where thr only ones that were the correct connection but that doesn't say much since it's two different. I'm going find out what is supply and return on the motor. Now.

Ok I checked my fuel line. The 1/2 is supply which my stock truck fuel line connected rught to the supply on the 5.0. The return is 3/8 which that is the return line size I used back to the fuel filter location in which I cut off that oem line fitting off the stock filter and used that so I could use the quick connection so I believe the fuel is correct?

Ok I took the starter signal wire pin 24 on the 42 pin connector and now when I turn the key the engine turns over now. So I got that part going now. But no fire

Ok I had the fuel lines backwards got it running. Bad ass thank you. Now I just need to figure out the alternator wire harness and ac. I have a 2 grey wires to one I loop I thought that was positive but it's grounded when I test it then there is the 4 pin plug . How do I tie them into my 42 pin plug what matches what? Thank you

Did I not say it was an easy mistake to make?

The a/c compressor and alt wiring don't go through the 42 pin connector.

Many have found the original Ranger a/c & alt wiring will work on the 5.0. There's an extra wire on the Ranger's alt plug that loops back to the single wire plug. That wire can be cut away and discarded.