Ok, hopefully we have some techs that look at this section, but my '99 Chevy venture has a problem with the wipers.  When you turn them off, they go vertical instead of down horizontal like they should.  I just got the van so I have no idea of it's past, they were up when I got it.  Thanks for any help.
2000 Turbo Z
 
I'm pretty sure that's a switch that needs to be replaced?  I think it's called a park switch?  I might be wrong though..
Red 2005 Saturn Ion-3 Coupe
Burgundy 2006 Saturn Ion - sold 
 
 
Thanks, I'll check that out...
2000 Turbo Z
 
What you need is the cam for the top of the wiper motor.  It is spring loaded and they go bad.  It is a royal pain to retime the wipers, though.
 
 
I believe that there is a recall on those. call the dealership and possibly give them your vin number they might have an answer. of if your a GM enthusist and have access to GM dealerworld you can find out for your self if your van has a recall.
**changes are here**
 
 
my 98 pontiac montana does that every now and again. i just tighten the nut that hold the wiper arms on.