Re: Wiper arm issue
Is the shaft that the wiper arm slides onto turning?
If no, then it is probably the linkage for that arm that is broken.
If yes, then it is either the male or female spline that is stripped. If you put on a new arm, then it it probably the male spline that is stripped. If neither looked stripped, then maybe the bolt that hold the wiper into the shaft is not tight enough.
You will have to watch it trying to operate, and figure out what is not correct.
2010 Equinox LTZ<br />4 cyl, FWD, S/R<br />Cardinal Red/Black