Symptoms of Bad Wiper Motor

Hi,
The wiper motor on my 85 Chevy Caprice makes a squealing sound on "High", and once I even saw smoke coming from it, when on the "High" setting. The
wipers move more slowly than usual also. Is this what happens when a wiper motor has gone bad ?
Is there some way to test it to verify the motor is bad, as opposed to just the circuit borad going bad? I just had to put in a new circuit board (it's in the washer pump) and I don't want to fry this one during my testing. Could a bad motor be causing the circuit board to go bad too?
Thanks
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User132384 wrote:

Take it off, take it apart, clean and lube everything (including grounds - as another poster said). Take all the wiper arms, levers, and pivots apart and do the same. Then put it all back together and hope for the best.
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Do as Paulie suggested, but understand a 20 year old motor might be bad, especially if your seeing smoke.
========Harryface ======== 1991 Pontiac Bonneville LE 3800 V6 ( C ), Black/Slate Grey _~_~_~297,024 miles_~_~_
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Thanks, guys. I ended up getting a new wiper motor/circuit board/washerpump combo from AutoZone. Fixed the problem. The grounds were OK.
In a perfect world (where I would be rich) I would have had the time to clean everything and try that approach. :)
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