Bad Wiper Motor?

[Scootin 81 C20]

OK, here we go. I'm having a couple of problems with my wipers on my truck, an '81 Scottsdale, and I'm wondering if they are motor related. Problem #1: My wipers wipe about every 20-30 minutes when I'm driving or sitting there listening to the radio without messing with the wiper switch. Problem #2: My windshield washer doesn't work. I have the reservoir filled up, but it doesn't work. And, a little side question. What is turning the wiper knob supposed to do. Any help is appreciated.

Thanks
Benjamin.

[Lt.Del]

turning  the wiper knob is the time delay adjustment...turn to right, faster cycle, turn to left, longer time b/w wiper activation.

As far as it runs every 30 mins or so, take a look under your dash on the firewall. There is a plastic cover for your washer motor.  If something in there is loose, a simple bump will activate your wiper motor.

AS far as your washer pump not working, do you hear the pump activated?  Check your lines etc..

[GoatBeard]

Yeah, that little knob is REALLY sensitive.  You want to make sure it's turned off.  That alone might solve 1/2 of your problem.

[Scootin 81 C20]

Thanks for the replys. I looked for the little panel under the dash and couldn't find anything. I tried turnning the knob, that didn't help. BTW, it was raining this morning and I found out that the first position to the right of off doesn't work. Anymore suggestions, or should I redo the wiper system?

Thanks
Benjamin.

[BigBlue]

Sorry to dredge this up, but I'm experiencing the same problem and wondered if this had been resolved.

[frito-bandito]

First thing I would try is the wiper switch, you may get lucky and that might solve all of your problems.