Wiper Motor Park Position

[Hayes Myers]

My wipers work fine, switch works fine except they park vertically instead
of horizontally... had a couple of times recently where they would park
about 4" higher than horizontal, but this would fix itself by doing a swipe
of the window with the switch. I searched the forum and found several
'fixes'

1) contact cleaner on the wiper stalk (or replace)
2) new motor assembly due to some disc/position sensor that has failed? (I
have a spare assembly anyway but find this solution interesting)
3) relay for the wipers (figure on having this spare as well), sounds
somewhat plausible, some contact staying open for one cycle or whatnot.

What has been your experience with wiper parking problems?  I pulled the
relay from under the hood and now I can use the stalk to manully park the
wipers and the wipers work, just no autopark /intermittent wipers now.
Actually read a bunch of posts on the wiper motor being kaput due to some
senor inside now not working to indicate proper park position. At this point
actually leaning towards replacing the wiper assembly based on readings
about senor in wiper motor.  Please save me grief if the motor assembly
isn't the way to go. (not a hard job at all anyway)

 

TIA,
Hayes  91 200 TQM 10v