1984 blazer

[noctech]

what do i do when back window wont roll up or down very well

[abig84]

i take it you have the electric window motor, just be happy that it works at all, you can probably pull the cover off the tailgate and grease everything and check to see if the tailgate is lined up properly if its not closed all the way or to much it will rub going up which would slow it down, or the moter might be taking a crap, one problem i had was a bad ground cause it was all rusty back there. try some of those