Wipers "Trying" not to park

[rick1956]

I'm not sure if this is against the rules or not, but I first posted this in the electrical section and got limited replies so I thought I'd repost it here. If I did wrong, I'm sorry. Anyway, here's the original post:

Here's the deal:

I'm dealing with my 1984 C10 plain Jane pickup with no frills (or intermittent wipers).

I first noticed the problem when I had half of my cowling apart during a windshield replacement. Here's what happened: When I plugged the wiper motor back in with no arms attached, the wipers continued to run, although very slowly, when I turned the switch off. They would, of course, stop when I switched the key off.

I assumed it was a park circuit problem and replaced the wiper motor (yes, with a rebuilt). I didn't try the wipers without the arms afterward because they were already reattached when I swapped the wiper motor out.

Apparently, it's still the same. When I'm driving and "pulse" the wipers for one quick swipe, they go slightly past the "park" position and stop about 2 inches up from the bottom of the stroke. Sometimes 1 inch--Sometimes 3.

Any ideas? It's obvious that I've thrown my money away on a wiper motor that I probably didn't need to replace in the first place. Either that or both motors were bad. What else could be the problem? I did notice a wire that has been altered on one of the wiper motor plugins, but I don't know what or why it was done. It looks like someone used it to tap into something else at one time.

Anything? Thanks fellers!