My windows are starting to malfunction. Can anyone recommend a place to buy motors?

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Rockauto website.

 

Do the recalibration process on the motor first, as parts wear the original calibration might not be working anymore but a new one could fix. Not sure the differences in calibration procedure for coupe vs. sedan but here's the procedure for coupe.

http://www.infinitihelp.com/diy/gcou..._procedure.php