constant humming maybe window motor???

[jim bright]

New to the forum. I just paid 2k for 96 gmc 1500 suburban. After inspection and some front end work the only thing that seems wrong is some hummi.g sound...maybe from power window motor idk. All windows work the strange thing is the humming stops whenever i push the power window butons. What is going on? Anyone ever dealt w this kind of issue before?

 

[Spikes]

I think I would start by pulling the door switches out and checking continuity with a meter. Sounds like power is going where it shouldn't!