MustangForums.com - '08 power window only moving couple of inches at a time

Hi All,

Proud '08 Bullitt owner here.
I've got an issue with my passenger power window that I can't seem to find anywhere on the forums, I've had a good dig about! Hopefully someone can help.

Problem:
Passenger powered window only moves a couple of inches at a time when either window switch is pressed on either up or down. I must therefore 'pump' the window up or down to change it's position by pressing and holding the button, waiting a second for it to move, release the button, press it again and repeat this process until it is either all the way up or down. If the door is closed and window raised and the door is then opened the 'auto dip' feature kicks in and then immediately winds the window completely down (not to 1/3rd). The drivers side window operates normally.

I've tried the usual reset processes described many times on the forums (and in the manual) without any luck, any suggestions?

Many thanks in advance!