Brand new Truck wont pull a trailer.

[john790]

It might not be the truck, it could be something with the trailer brakes that the truck is picking up through the controller.

I did look the trailer over pretty closely.I socked the trailer brakes with 20 amps did not blow a fuse if it blowed a fuse i would thank it would have a dead short in the brakes.Plus i did pull trailer with different truck worked fine puts me back to the truck.