sorry, but you probably have the cable in the window regulator that is eating up the plastic covering on the regulator... i had this, you gotta take the door panel off and then glass out to take the regulator out to replace it... get a haynes manual at autozone for about $12.00 and it will walk you through the process.. i think the window regulator which comes with motor(complete) cost about $120 at the dealer.... its a common problem...i tried fixing mine.. i have a small metal cutting lathe and some cables from a motorcylce shop and i still could not get it to work..i broke down and bought a new one...