M30 convert power window problem

[sertec]

I recently acquired a 92 M30 convert, the passenger side window went up sluggishly, but got there eventually...down is no problem...now it doesn't go up at all. All other windows work perfectly. I tried to read the electrical drawing to trouble shoot the problem...to confusing for me..does anyone have an idea what could be wrong? Really frustrating. Thanks !!

[driftkaztik]

quite possible a motor going bad. I see you registered of f31club. well, I could be wrong, but the vert window motor might be the same as the coupe.. but not 100% sure.

[sertec]

I took the door cover off and put 12 VDC to motor leads, window worked fine...I then took off driver side cover and compared motor currents with both windows...very similar...and other ideas ??

[Defiant]

Binding runners, mis-alignment, corroded electrical contacts in the circuit, bad window motor switch.

[MinisterofDOOM]

Try lubricating the window track and other moving parts. I've done this a couple times, and am always surprised at the difference it makes.