Wiper motor won't stop pumping - Team Camaro Tech
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post #1 of 10 (permalink) Old Oct 15th, 09, 08:37 AM Thread Starter
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Craig
 
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Wiper motor won't stop pumping

I hate to start another wiper thread, but I didn't want to hijack the other one. I just installed a new washer pump. Problem it, it shoot fluid any time the wipers are running. I don't ever actually plan to use the wipers, but this was the last ting on my car that needed to be working in order that everything functioned as it did when new. This car was unmolested prior to the resto, but none of the wiring was disturbed.

Any idea? The switch is new too.

Craig


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post #2 of 10 (permalink) Old Oct 15th, 09, 02:07 PM
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Re: Wiper motor won't stop pumping

I have the exact same issue...hopefully someone that has fixed it will chime in...

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post #3 of 10 (permalink) Old Oct 15th, 09, 03:23 PM
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Re: Wiper motor won't stop pumping

X3
I also know someone with this problem.

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post #4 of 10 (permalink) Old Oct 15th, 09, 04:50 PM
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Re: Wiper motor won't stop pumping

Quote:
Originally Posted by Brackneyc View Post
I hate to start another wiper thread, but I didn't want to hijack the other one. I just installed a new washer pump. Problem it, it shoot fluid any time the wipers are running. I don't ever actually plan to use the wipers, but this was the last ting on my car that needed to be working in order that everything functioned as it did when new. This car was unmolested prior to the resto, but none of the wiring was disturbed.

Any idea? The switch is new too.
Is it possible that you could have reconnected the wiring incorrectly...i.e. the connector has been "flipped" when reconnecting it to the washer pump?????? Just a thought.........

David F.

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post #5 of 10 (permalink) Old Oct 15th, 09, 05:17 PM
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Re: Wiper motor won't stop pumping

Quote:
Originally Posted by Brackneyc View Post
I hate to start another wiper thread, but I didn't want to hijack the other one. I just installed a new washer pump. Problem it, it shoot fluid any time the wipers are running. I don't ever actually plan to use the wipers, but this was the last ting on my car that needed to be working in order that everything functioned as it did when new. This car was unmolested prior to the resto, but none of the wiring was disturbed.

Any idea? The switch is new too.
The wipers will always run when fluid is squirting but the squirting should last only one revolution of the pump cam, then a set of points opens, breaking the ground. Take the cover off the pump and observe the cam operation. Maybe the points aren't riding on the cam correctly. I don't know how the switch is wired but if it's new, check there. I think somehow you must have a ground on the dark blue wire when you shouldn't.

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post #6 of 10 (permalink) Old Oct 15th, 09, 05:30 PM Thread Starter
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Re: Wiper motor won't stop pumping

Quote:
Originally Posted by 1969ProStreetCamaro View Post
Is it possible that you could have reconnected the wiring incorrectly...i.e. the connector has been "flipped" when reconnecting it to the washer pump?????? Just a thought.........

David F.
I tried it both ways. Same problem.

Craig


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Now you will see that evil will triumph, because good is dumb.
-Dark Helmet

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post #7 of 10 (permalink) Old Oct 15th, 09, 05:30 PM Thread Starter
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Re: Wiper motor won't stop pumping

Quote:
Originally Posted by Melrose RS View Post
The wipers will always run when fluid is squirting but the squirting should last only one revolution of the pump cam, then a set of points opens, breaking the ground. Take the cover off the pump and observe the cam operation. Maybe the points aren't riding on the cam correctly. I don't know how the switch is wired but if it's new, check there. I think somehow you must have a ground on the dark blue wire when you shouldn't.

I'll check it out. I appreciate the help you guys.

Craig


------------------------------------------------------------------------------
Now you will see that evil will triumph, because good is dumb.
-Dark Helmet

1967 Camaro
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post #8 of 10 (permalink) Old Oct 15th, 09, 09:45 PM
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Re: Wiper motor won't stop pumping

I'm not familar with the 67, my area of expertice (if you can call it that) is the 69 Wiper. If the solenoid wireing is grounded it will always pump. Pull the washer connector, if it quits after one revolution you're shorted to ground somewhere between the motor and the switch. On a 69 the solenoid pulls an arm that then engages the gear and allows the pumping. If the gear has any bad teeth it won't "ramp up" and shut off. One of the teeth is the end of a spring that holds the gear on, I've been told they wear out.

Jeff
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post #9 of 10 (permalink) Old Oct 16th, 09, 06:40 PM
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Re: Wiper motor won't stop pumping

I am having the same issue on a 68 Chevy truck which uses the same pump. I went through 7 NEW pumps before we got one to actually work. Now that is works it will not stop. The problem we are having is that the pump drive gear is not fully advancing the arm and will not allow the pump gear to make a full revolution. I have fought this issue for days now to the point of making a new pump drive gear. You guys think it is bad dealing with this on a Camaro, then try dealing with one on a 67-72 chevy truck that has a/c with this issue.
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post #10 of 10 (permalink) Old Oct 20th, 09, 02:52 PM
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Re: Wiper motor won't stop pumping

I just solved this issue. Turned out multiple problems but finally solved.

First, new wiper switch installed. The first one was bad.
Then seriously did some sanding behind the new switch to create a good ground. Which also turned out to be a problem.

Changed the wiper motor but in the end it was good. So I returned it. Advance has these parts stock. It DOES NOT come with the CAM attached.

Bought the new Washer pump motor also from Advance auto. Problem fully and finally solved. This part does come with the CAM but ultimately, the final washer run on problem lay in the washer pump itself. Also, its pretty cheap, like $28.

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

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