What are things to fix on electric window?

What is your question?

I changed the window motor, regulator and switch on drivers side door. The passenger side switch works, a little slow, but does its job. Using drivers side switch, rolling both passenger and drivers side up or down doesn't always work. It works the first few tries but then quits. Then if you wait a few minutes it will work a few tries again... The cycle continues. So is it a wiring problem or what, where do I look or what are the next steps?