Passenger side window not rollin up properly. 2004 Mustang

If it works with the passenger side switch but not the drivers switch, I would look at the drivers switch for the problem.

I have a 1990 Mustang with power windows. When i first got the car the windows rolled up and down fine, then the passenger one started going up slower than the driver one. When i needed to fix my power locks i had them change the window motor in the passenger side. Now the passenger window rolls up faster than the driver one. The problem is the window motors.......and about the motors still running: the switches probably need to be replaced as well. I can almost guarantee this will solve your problem:)

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code drivers door switch faulty .but also check drivers door switch for shortcircuit

the window switches in the door can offten go bad just from sticky fingers. some times the are known to just stop working all of a sudden. it is also posible that the motor has gone bad, or more likely a bad conection at the motor or switch. the door switches on the mustangs are not the most sturdy switches. the tend to break loose and move around. u can test the motor by simply runing 12volts the the terminals on it. depending on witch terminal has power and witch has ground determins if the windo goes up or down. also check with volt meter or test light that there is power to the switch, just turn the key on and ground the test light and plug in the terminal that goes to that switch.

1997 Ford Mustang 3.8 liter V-6 VIN "4"

Cylinder # passenger side radiator to firewall, 1-2-3
Cylinder # passenger side radiator to firewall, 4-5-6

Coil numbering
Radiator side, passenger to driver side 5-6-4
Fire wall side, passenger to driver side 1-2-3

Thank you for using fixya and good luck

change the switch

sounds like the motor has gone bad..

first check the fuse.if its good then check the window motor by pressing the button and if you dont hear the motor going theres your problem, needs to be replaced.  unfortunatly the motor isnt sold by itself you got to buy the window regulator. here is a pic. of the part

the first thing to do is take the door panel off and then take your window motor off and trouble shoot it. thats the problem 80% of the time.