Hi all,

A few months back (before I pulled the clip and motor) I bought 4 relays to do brighter whites with, was going to mount 2 relays by each headlight and utilize the factory wires to control them ... 2 more relays, less wiring!

Well, After pulling the dash, clip and motor I find I have deeper wiring issues so I pulled my engine bay / cab harness apart for cleanup and repairs, got it all cleaned up, repaired and ready to re-wrap except for any wire additions.

Now I'm planning to add two 14ga wires into the harness from headlight to headlight and only use 2 relays for brighter whites, I'll mount the relays by the starter relay.
I've removed the 16ga headlight wires to the left front, going to use the right front wires to control the relays.

While I have it apart are there any other wire inadequacies I should resolve at this time ????

How about relaying the Running lights to get them off the headlight switch, Where would one tie in at ????

Thanks

-Enjoy
fh : )_~

 

Using a relay for the running lights would be a good mod also, since the tan/white feed wire has a habit of melting and burning up . Problem is the main wire brown wire you want to feed is over at the headlight switch, and of course your source for good power will be beside the headlight relays over at the pass side fender.

If you want to take just the load off the switch, you can mount the running lights relay over at the switch, and use the original fused feed wire to feed the relay(the tan/white wire). The tan/white wire will still need to feed the switch, since this is where the dash lights get their power also, but you could tie into it and run a branch over to the new relay, and use the original brown wire coming out of the switch as the trigger for the new relay coil.

If you wanted to mount the new running lights relay over beside the headlight relays, you will need to modify the harness, taking the brown wire leaving the headlight switch and running it all the way over to the pass side fender to trigger the new relay. After that you will have to feed the brown wiring in the harness somewhere. I am not sure, but since you have it laying out, maybe you could feed the brown wire near the pass side fender, since there is a marker light over there as well as the turn/marker light under the headlight.

See if the wiring size looks the same and that it would handle back feeding the whole circuit from that side, eliminating running a new feed wire all the way back to the old original brown wire at the headlight switch. I am curious myself how this would work out.

 

Haven't had a chance to work on this for a couple days, I did take a couple quick looks though.

I do not have the harness completely unwrapped, just sections that needed re-working.
All of the engine side of the fire wall is unwrapped, left side is to the junction where the dimmer switch ties in and the ignition switch wire group splits off, right side is unwrapped up to the FSV split ... That leaves pretty much all of the center dash area still wrapped. Stuff that was not accessible to the hack PO.

There are two brown running light wires at the head light switch, does anyone know where these two go??? Does one handle the front half of the truck and the other the rear half???

I'm thinking on bringing heavy fused power into the cab above the glove box and putting all the relays there ... But I don't remember what it looked like in that area so I need to reinstall the dash to pick a location to see if they'll fit.

Thanks

-Enjoy
fh : )_~