C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Oct 6, 2011 | 07:59 AM
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TFitz
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Default washer pump

can anyone help with how the washer pump works on 1970? mine will act like it wants to pump but I have to push on the rod that engages the pump to go up and down and after it cycles it shuts down ok but every time I want to get it to go I have to push arm to engage. ????
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Old Oct 6, 2011 | 09:51 AM
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there is an electro magnetic coil which is energized when you push the washer button and pulls the arm down to start the cycle.
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Old Oct 6, 2011 | 06:22 PM
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Hi tf,
Recently I had a similar problem with the pump on my 71. The coil MW mentions wasn't activating because I had a poor ground connection between the pump coil, (dark blue wire), and the pump part of the wiper switch in the dash (dark blue wire).
Worth a check?
Regards,
Alan

.....Roger steered my non-electrical brain in the right direction.
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