Hey all,

I've seen several posts about wiper motors, but nothing with my specific issue. Ok so mine work sporadically like some others, but they also do something weird. There are times when I use them with the sprayer and they wont turn off. Many people say that 9 out of 10 times its the motor, but this makes me think that maybe the switch is going bad.

What do y'all think?

The other day, my wife took the truck and they wouldn't come on at all. Whenever I test them, it doesn't do that lol.

IDK, there seems to be a gremlin in there somewhere. I'm thinking of replacing the motor and the switch and being done with it haha.

 

The circuit board mounted near/on the driver's side firewall is more than likely the problem. If you are good with a soldering iron and know a little about circuit boards, it is an easy fix. I don't know crap about circuit boards and I can weld, but not that good with soldering. Very common problem on these Blazers. You can buy a new board fairly cheaply.