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The way that replace a window regulator in a 2003 Buick LeSabre front drive side is by removing the door panel. Next, disconnect the electrical connector on the regulator and replace.
you need to replace the regulator. dealership is the only one that has it about $170.00
Take your door panel off and replace them...
See this post for instructions and photoshttp://www.ricksfreeautorepairadvice.com/repair-topics/window-power-repair/replace-a-power-window-regulator
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Replace window regulator.
Because of a bad design on the window regulator. Bad nylon spindle that guides and spools the metal cable. The only way to fix this is to replace the regulator.
how to replace window toggle switch 1999 buick century
Need to pull off the door panel to see if you need to replace the motor and or the regulator. look for broken or twisted cables on the regulator.
you need to replace the window regulator in the door. some come with a motor some come without. ask your local parts dealer.
You need a 3/8 drill bit to drill-out the rivets and then replace the motor that way. It might be easier to replace the whole regulator.
Complete instructions with photos: