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They stopped working about 2 months ago. When I hit a hard bump in the road, they work for a time; but then stop. What could be wrong?

Response:

Sounds like a loose connecrtion.  Get out your meter.  Wiper motors usually last forever.  My dad had to have one replaced on a 70′s AMC wagon, and we used to burn them out on our police cars when arriving at a bad accident when it was raining.  You bail out leaving all the equipment running, and on a serious injury or fatal, we might be there for a couple hours.  In the meantime, it’s stops raining, and the wipers have no lubrication, which loads the motor up and it burns out.  In about 55 years of driving 40 vehicles, I’ve never burnt one out.

GM’s Wonderful Pain…. Put it All-in-One, the Turn Signal Switch Assembly!!!! Ao $20 part and it pops out with minimal pressure. Careful with those Hair tin wires ’cause thats what started the mess.

I had a 92 Transport and it did the same thing…it was the wiper motor. Got one at Andy’s on W. Michigan with the whole mechanism and it worked great til the motor gave out for the 2nd time. I miss that van…was very comfy.

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