How you fix your window you hear the moter trying to make it go down but it wont this is on a xj6 91 passanger side?

It sounds like it might be off the track inside the door. You'll have to take the panels off the door to access the motor and slide to verify. The motor could also be bad. Either way, you have to pull the panels off to find out. Used motors sell relatively cheap on e-bay.
I actually managed to replace the motors on both the rear doors on mine without taking the entire doors apart (removing the upper frame), but you might want to buy a Haynes manual and follow the instructions in it for yours.

Good luck!