wiring help..

[Toomanycars]

truck info .. originally 1991 4.0 auto

So im to the point now were I have to make the truck and the motor get along .. I have a complete engine and tranny harness and the comp ..

I have a haynes repair manual for the mustang that the harness came out of and one for the ranger as well ..

Now stop me and tell me if im wrong but can i just cut all the 4.0 wiring off the old harness and leave all the lights and stuff in that bundle and then run the 5.o stuff on its own since i have the firewall gourmet as well .. ??

P.s I did use the search but i got the message that the words I was searching for were to common

 

[morse johnson]

Sure you can that is what i did with my 91 4.0. i actually used the alternator wiring harness from the 4.0. Just like you said you can run the 5.0 harness and just splice everything you need into it and just remove the 4.0 harness but keep your accessories harness connected.About the haynes manual dont waste your money i have this site i found online thats elementary about the only thing you might need is a decent multimeter and a test light. The test light and meter will be your best friend. This is the site i have for you.http://www.liquidmatrics.com/cpg1418/albums/userpics/10001/alifi.pdf

 

[Toomanycars]

Very nice thank you morse johnson.. that is an great bit of info..

 

[morse johnson]

not a problem i just hopes it helps you out alittle..