Guys, I have read the "read first" thread and haven't seen this in there. Here is pic of my gp relay. Like the genius that I am, I didn't take a pic of it before is took it off so I'm posting this. My question is: what is the second red wire for? The one from the GP harness makes sense. The other one is coming from underneath the GP controller. Please help

 

Can we get a bigger pic?

 

 

 

Here is what i do know

everything appears to be hooked up right.

The two big yellow wires that go to the big upper left terminal are connected to the pos post on bat.

The single small red wire connects to ignition switch.

The green wire that gets pinched between the controller and the "Z" bend thingy connects to the glow plugs.

That is the extent of what i know. others will chime in.

 

I've got wiring set up like this but don't have my batteries hooked up. I would like to confirm that all wires are where they should be before I supply power. Concern is about the two red wires. I thought there was supposed to be only one. Anyone with experience with this? I would appreciate your input.

 

here is mine.

yours is set up right.

 

Thank you!

 

Truck is running. WTS light stays on for 8-9 seconds. Batteries are low so I'm gonna charge them today. Radiator next, then clutch, pressure plate & throw-out bearing. Thanks for the help.

 

cool.

what are you going to do for a rad?

 

copper.
https://www.ford-trucks.com/forums/9...l#post10513622

 

'94 - Dunno. Didn't know about sca's or litmus testing until a few days ago. Again, suggestions would be appreciated. BTW, update on truck - after new gp's, new voltage regulator, new gp relay and one new battery, truck won't start unless i jump it off. Ran for 50 minutes to build up a charge on batteries but evidently it didn't take. Going to check fuses in the morning.

 

pretty sure it is highly recomended to do both batteries at the same time. the old one might be drawing down the new one.