05 cummins isx leaking anti freeze

Cool, always glad to help! Happy new year to you too!

 

Broken wire for the tail light circuit. Both tail lights and license plate are powered by same wire. Could be broke anywhere. Power for this splits from the same main feed for cab and dash clearance lights. This circuit comes out of one of the octagon shaped connectors at the firewall. I think it is on the right side, but it will be the one with mostly orange and brown wires, (the one with mostly purple wires is for the engine). The tail light feed will be a brown wire. Basically just follow the harness the best you can from the tail lights up to the firewall and check for any locations where it is rubbed through. I don't think there are any connectors mid chassis for this, just the firewall, and then at the tail lights. If you have after-market tail lights chances are there is a butt connector that is just corroded through. Wires wrapped in electrical tape is usually a dead give-away that some kind of connection is hidden in there.

 

probably have stripped the crank arm at the motor or something. Are they not moving at all?

 

I think yours should all be mounted on the outside of the firewall under the wiper cowl, or the black plastic tray right below the windshield. The motor, bracket and linkages are sold as an assembly and easy to change out. The wiper arms come off. Then you remove the complete wiper cowl and the center air intake section and that should open up the whole firewall area. The wiper bracket is only held on with 3 or 4 nuts, no big deal. Sometimes the wiper arms can get seized to the pivots, but if they are, I don't think they are too expensive and just smash them off then replace them too.

 

Yah I know, sometimes trucks suck!