Did anyone ever have this "whining" sound coming from the wiper motor area under the cowling. Its definately not coming from any of the blades and you can hear the "whinning" inside the passanger compartment?
I know - ancient thread...but for anyone with a similar scenario, I just pulled my wiper motor assembly to deal with a related noise and found the original motor and linkage in good shape.
I also found a 1.5" X .5" shiny spot where the backside of the motor was apparently rubbing on something, such as a body seam/weld, perhaps setting up that groan/whine noise.
The replacement I picked up has a plastic shroud on the motor that the original doesn't. I'll do what I can to keep the issue from repeating. At least I've got a spare assembly now