Anyone have a wiper park problem fix? They won't park correctly and in intermittent they still work butdon't park in correct spot. The next cycle they just continue after parking in wrong spot. Linkage problem maybe?

 

Has anything been done to the truck recently?

If the wipers have never been disconnected then I'd say something in the linkage is bent or being restricted in movement.

If the wiper arms have been removed then they just need to be relocated. That might solve your problem even if they haven't been removed.

 

I have seen the one of the plugs come loose at the wiper motor itself. All 3 speeds will work but it will not park and intermittent will be funky

 

Its worth taking of the plastic piece and having a look at the linkage IMO. I had a piece of ice go down in mine and bend the linkage. It bends surprisingly easy.

 

I had a wiper motor go bad that caused this...