Wiper Motor Hot to Touch
 

My wiper motor is hot to the touch. Im guessing somekind of internal short. Has anyone else encountered this before?

Thanks,
Ryan

Re: Wiper Motor Hot to Touch
 

It could be low voltage to the motor. The voltage is easy to check. There are several threads on troubleshooting wiper motors and switches if you do a search. A bad ground can cause the voltage to be low too.
Or it could be too much resistance from the wiper arms and the bushing through the firewall. (Which I had on my Burban.) The resistance check would require removing the motor and running it disconnected from the arms to see if it runs cooler.

Re: Wiper Motor Hot to Touch
 

Sorry, forgot to mention this was with the switch off. Motor not spinning but it was hot. Hadnt been on all day. No wiper arms installed yet.
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Re: Wiper Motor Hot to Touch
 

That's not a good sign. Sounds like the motor is stuck out of the park position and is trying to get there. I would unplug it now! Have you removed it from the firewall? My firewall bushing was dragging so the wipers were moving at about half speed. Yours maybe worse than mine was.
Another possibility is the brushes in the motor are so worn that the motor can't turn to get back to the park position.

Here is Lockdoc's thread on wiper electrical to help you test the circuitry.

http://67-72chevytrucks.com/vboard/s...d.php?t=413551