C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Washer pump / Wiper motor module

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Old Sep 10, 2007 | 10:02 PM
  #1  
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Default Washer pump / Wiper motor module

Hey guys,

Here's my situation...done many searches in advance.

No washer fluid squirts.
Pump does not make a sound.
I've tried two different pumps.
Hoses are clear.
Wipers work.
Delay wipers may not be working, not sure how they're supposed to behave. They go once, but not again, it seems. I have read that if the intermittent wipers don't work, some sort of relay is toast that affects the pump. Is there a way to test the pump independently? I have little to no electrical experience.

Has anyone solved this problem as described above? Does the whole wiper motor have to be replaced? If so I won't bother.
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Old Sep 11, 2007 | 12:50 AM
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I've got an 89. My wipers work fine. When I try to "mist" it, the wipers work but I get no spray. So, I'd be interested in this as well.
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Old Sep 11, 2007 | 08:19 AM
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Originally Posted by Staehling
Hey guys,

Here's my situation...done many searches in advance.

No washer fluid squirts.
Pump does not make a sound.
I've tried two different pumps.
Hoses are clear.
Wipers work.
Delay wipers may not be working, not sure how they're supposed to behave. They go once, but not again, it seems. I have read that if the intermittent wipers don't work, some sort of relay is toast that affects the pump. Is there a way to test the pump independently? I have little to no electrical experience.

Has anyone solved this problem as described above? Does the whole wiper motor have to be replaced? If so I won't bother.
.....you have a pm...
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Old Sep 11, 2007 | 08:54 AM
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http://members.shaw.ca/agent86/Winds...r%20System.pdf
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Old Sep 11, 2007 | 10:39 AM
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Thanks, Agent.

I have the FSM, but am electrically ignorant.
How do I "apply 12V" to a terminal to test the pump?

cheers
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Old Sep 11, 2007 | 02:18 PM
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Staehling,

Did you get to the washer pump by removing the fender? I hope it's not too bad to reach.

I'm waiting for a pretty weekend to do this on.
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Old Sep 11, 2007 | 02:59 PM
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Yes, you get to the pump by removing the bottle, which you get at by removing the little side fender. Not too bad to do, though if you can "apply 12v to the terminal" as per Agent's PDF, you can test the pump without removing, which is what I would like to do. Need someone to guide me on the apply 12v part though.
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Old Sep 11, 2007 | 03:23 PM
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Originally Posted by Staehling
Yes, you get to the pump by removing the bottle, which you get at by removing the little side fender. Not too bad to do, though if you can "apply 12v to the terminal" as per Agent's PDF, you can test the pump without removing, which is what I would like to do. Need someone to guide me on the apply 12v part though.
Looking at the info, it asks you to remove the connector from the wiper motor cover and apply a 12 volt supply to terminal 7. Since the battery is real handy, you could run a wire from there, into terminal 7 to see if the pump is actually good.
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Old Sep 11, 2007 | 04:03 PM
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Originally Posted by AGENT 86
Looking at the info, it asks you to remove the connector from the wiper motor cover and apply a 12 volt supply to terminal 7. Since the battery is real handy, you could run a wire from there, into terminal 7 to see if the pump is actually good.
Thanks, will try running a wire from + bat term to 7 on connector.
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Old Sep 11, 2007 | 07:05 PM
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It works and would have worked all along.
I am an idiot!

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Old Sep 11, 2007 | 07:30 PM
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Originally Posted by Staehling
It works and would have worked all along.
I am an idiot!

Was it unplugged before the no squirt test
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Old Sep 11, 2007 | 08:07 PM
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No.

I misinterpreted PUSH for squirt as push down towards MIST, not push IN. I'm drowning my shame in a Heineken mini-keg now.

:P
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Old Sep 11, 2007 | 09:10 PM
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Originally Posted by Staehling
No.

I misinterpreted PUSH for squirt as push down towards MIST, not push IN. I'm drowning my shame in a Heineken mini-keg now.

:P
Mmmmmm !! Sounds good
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Old Sep 11, 2007 | 09:13 PM
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Old Sep 11, 2007 | 10:14 PM
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Originally Posted by Staehling
Go ahead and rub my Budweiser into my face
Oh well, after 6, it's wine time Chilean Merlot
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Old Sep 11, 2007 | 10:22 PM
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I don't know about rubbing the Bud - you might like that!!
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Old Sep 11, 2007 | 11:06 PM
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Originally Posted by Staehling
I don't know about rubbing the Bud - you might like that!!
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Old Sep 12, 2007 | 01:34 AM
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Ok, my washer squirts. I went out and pushed the button in. I had been sliding the button down for mist. What is the point of sliding the button down? It just wipes one time.
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Old Sep 12, 2007 | 09:58 AM
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To clear off the "mist", I guess.
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