Just picked up a new-to-me 93 Dodge D250. Going thru it and found these two wires near the battery. They say that they're a fusable link. Anyone know what they go to? I'm assuming that they aren't ground wires even though they're black...

 

grid heater's ?

 

x2. I think they go on the positive terminals to power the grid heaters. You should be able to follow them to the grid heater relays.

 

yea they are for the grid heaters, which means yours aren't hooked up. Depending where you're located you may want to hook them up. Helps it start in the morning.

 

Word of caution they might be disconnected for a reason.

 

thanks for the reply's everyone. i'm down in texas, so i will probably just leave these disconnected for now.