Washer pump on when wipers on - Team Camaro Tech
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post #1 of 20 (permalink) Old Aug 31st, 09, 06:21 PM Thread Starter
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Washer pump on when wipers on

Hey guys. I just replaced and grounded WELL my wiper switch. Now everytime I turn the wipers on the washer stays on too. Both washer and wipers function fine.

Sounds like some selenoid or on off swith for the washer is stuck in th on position? This would be buried somewhere in the motor?

Thanks in advance! You guys are awsome!

1968 Convertible L92 VVT project, Hotchkiss lowering front & rear.

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post #2 of 20 (permalink) Old Aug 31st, 09, 08:26 PM
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Re: Washer pump on when wipers on

Unplug the connector from the washer pump and locate the hot lead. Plug only the hot lead back on the solenoid. If the washers are still washing the motor has a problem. If this fixes the problem the wire form the solenoid to the switch is grounded some where or the switch is defective.

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post #3 of 20 (permalink) Old Sep 2nd, 09, 05:24 PM Thread Starter
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Re: Washer pump on when wipers on

thanks Jeff. Just aligator clipped the yellow hot wire but then they do not work at all. Either washer or wiper. The pump appears newer so maybe a short somewhere? The non yellow wires all show they are grounded on my ohm meter.

Perhaps Lt blue and Dk blue on the switch are reversed?

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post #4 of 20 (permalink) Old Sep 2nd, 09, 08:43 PM
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Re: Washer pump on when wipers on

I've lost something in the translation here. Leave the wiper wiring intact and pull the washer wiring only. Jumper the yellow wire over to the washer but not the other. See what happens then. I am going off memory as I have just loaned out the book on these. I think when both of the blue wires are grounded the wiper parks. The wire that feeds the washer should only be grounded when the button is pushed. I think you trying to tell me that wire is grounded all the time.

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post #5 of 20 (permalink) Old Sep 3rd, 09, 03:41 PM Thread Starter
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Re: Washer pump on when wipers on

Thanks Jeff. Upper left lt blue wire is grounded full time.

I pulled the plug on the lower right plug and jumped yellow wire back in.

Both wipers and washers come on on.

I am not the brightest bulb on the tree with this deal. Pics below.

http://www.flickr.com/photos/[email protected]/?saved=1

1968 Convertible L92 VVT project, Hotchkiss lowering front & rear.

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post #6 of 20 (permalink) Old Sep 4th, 09, 02:46 PM
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Re: Washer pump on when wipers on

Inside the wiper is a whate cam, if this is worn the pump doesnt always turn off.

My Spelling is not incorrect...it is creative

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post #7 of 20 (permalink) Old Sep 5th, 09, 08:26 AM Thread Starter
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Re: Washer pump on when wipers on

Thanks. I see it. Do you know where to get a replacement?

1968 Convertible L92 VVT project, Hotchkiss lowering front & rear.

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post #8 of 20 (permalink) Old Sep 5th, 09, 01:37 PM
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Re: Washer pump on when wipers on

No..I did mine about 12 yrs ago...not having internet in those days and being in NZ I machined up one out of a block of teflon.

My Spelling is not incorrect...it is creative

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post #9 of 20 (permalink) Old Sep 5th, 09, 01:52 PM
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Re: Washer pump on when wipers on

From Jeff's manual
Click image for larger version

Name:	washertrouble.jpg
Views:	78
Size:	60.1 KB
ID:	11968
Hope it helps

Some videos I'v made for youtube

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post #10 of 20 (permalink) Old Sep 5th, 09, 02:10 PM
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Re: Washer pump on when wipers on

I would think that the dealer should be able to get one, I think they are the same on all the GM's that used them.

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post #11 of 20 (permalink) Old Sep 5th, 09, 09:43 PM
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Re: Washer pump on when wipers on

According to the AC Delco electrical service manual the wiper is pretty well stand thru most models of the period...and if not most of the parts inside are.

My Spelling is not incorrect...it is creative

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post #12 of 20 (permalink) Old Sep 11th, 09, 01:41 PM Thread Starter
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Re: Washer pump on when wipers on

Called everywhere and canot locate this cam. GM says they no longer make it or the motor.

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post #13 of 20 (permalink) Old Sep 11th, 09, 02:08 PM
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Re: Washer pump on when wipers on

If you get a new motor the motor comes w/ the cam. Got my motor from the local parts plus store.
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post #14 of 20 (permalink) Old Sep 11th, 09, 09:48 PM Thread Starter
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Re: Washer pump on when wipers on

Got new motor before we figured out the cam issue. It did not come with the cam.

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post #15 of 20 (permalink) Old Sep 12th, 09, 06:01 AM
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Re: Washer pump on when wipers on

I just bought one at advance auto of all places and it comes with cam and cover.
if you cant get the pump at advance then PM me your addy ill give ya my old cam which is still good.
my is for a 69 though im sure they are the same.


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