Windshield Wiper Issue

[kentucky_smith]

I can't get my windshield wipers to work. This is a 72. There's a red wire under the dash with a funky black plug. When I connect the red wire the fluid pump works. I found the wiper switch to be unplugged. I plugged it up, pushing the button in for the fluid thing makes a noise. Moving the switch to any of the positions doesn't do anything. The wiper motor itself looks to be plugged up right. Anyway to test the switch or what should I be looking at?


Also, the heater control lever broke, anyone know a source for these?

[LockDoc]

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As far as testing the wiper read this thread:

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

Any parts vendor can supply a kit to fix the heater control.

LockDoc

[kentucky_smith]

Okay. Got that figured out. Just need to get fluid pumping from switch.

Thanks.

[LockDoc]

Originally Posted by kentucky_smith

Okay. Got that figured out. Just need to get fluid pumping from switch.

Thanks.

That may not happen. Out of the 15 or so I have, the washer pumps work on 2 or 3 of them. I hope yours works though....

LockDoc

[kentucky_smith]

Pump works, just not through the switch.

[cleszkie]

The red wire with black plug sounds like the power lead to the radio or cigar lighter. On my Blazer, there are two separate wiring harnesses that run to the wiper motor and pump motor. Both have multiple wires contained in plug ends with unique shapes so they are not used on the wrong motor. Someone here will hopefully post up a picture of what I am talking about. I would be leary of using that red wire, as a fire that far up in the dash would be hard to get to to put out quickly.

[kentucky_smith]

Figured it out. A previous owner hooked up a secondary pump on the fluid reservoir and the switch he used was broken. I put in a new switch and it's all working now. I didn't realize that the real pump is on the motor and is vacuum controlled. It works, but I'm not going to the trouble of hooking it up now.