So the pump was makeing noise, due to it running alot due to a leak I din't notice for a while. Fixed the leak then the pump quit altougher. Bought a new pump, now there is no power to the pump. Also no backup lights about the same time the pump quit. Is there a relay switch some where? Thanks

 

did you check your fuses ? under hood fuse box and under dash?

 

there is a vacume cioneld next to v pump, take line off if pump runs thats it
happend to me about 45$

 

Visually checked ALL the fuses, guess I'll look for the solenoid. When it warms up. Currentley -3F. Wind chil-20 FT

 

it is next to pump, has white top or mine did, you can unhook lines from it to see if pump
works, was told any mosture get in it, junk, hope this helps

al

 

This truck has manual hubs so there is no solenoid. Installed a wire from the GPR to the pump and it works fine, I'll persue the lack of power to the plug and lack of backup lights as soon as it warms up a bit, thanks for your help.

 

Check fuse #28 in the central junction box. Verify power with a test light. This is the one for the back up lights and vacuum pump. The wiring diagram doesn't show any relay for these.

 

It was #28, it worked fine untill I put it in reverse. Finally traced it down to a short in the trailer plug. Didn't know I had backup lights in the trailer plug! Thanks guys.

 

Thanks for posting back with the solution.