Windshield Wiper Pump Problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cleszkie · 06-12-2012, 05:44 PM

When I push my wiper knob to clean the winshield, the wipers come on and the pump pumps. That is all good

But the pump does not stop pumping on its own like it is supposed to. I turn the wipers off and the pump stops. When I turn the wipers back on, the pump will start pumping again on its own

I thought it was a problem with the wiper/pump switch, so I replaced mine with another Delco unit that did the same thing. So now I'm thinking its some sort of relay that is stuck closed in the pump unit itself. Can anyone shed any light on this situation for me? Is there a relay to replace, or do I need a whole new pump? Thanks in advance.

cleszkie · 06-13-2012, 07:45 PM

No one ever experience this? Maybe its the uber-rare Corvette pump option.

**jaros44sr** · 06-13-2012, 07:56 PM

Maybe you should just fill up your fluid bottle with enough to clean the w/s one time...then it wouldnt matter if the pump was running

Is there even a relay on that circuit, bet its a ground. Im guessing...

Id drop down in the electrical section, and pose the question to them

**jaros44sr** · 06-14-2012, 12:29 PM

Just checked mine, it has a manual pump...so, i cant answer your question. Didnt even know they had electric pumps

06-12-2012, 05:44 PM	#1
cleszkie Registered User Join Date: Feb 2003 Location: Santa Ana, CA Posts: 2,191	Windshield Wiper Pump Problems When I push my wiper knob to clean the winshield, the wipers come on and the pump pumps. That is all good But the pump does not stop pumping on its own like it is supposed to. I turn the wipers off and the pump stops. When I turn the wipers back on, the pump will start pumping again on its own I thought it was a problem with the wiper/pump switch, so I replaced mine with another Delco unit that did the same thing. So now I'm thinking its some sort of relay that is stuck closed in the pump unit itself. Can anyone shed any light on this situation for me? Is there a relay to replace, or do I need a whole new pump? Thanks in advance.

06-13-2012, 07:45 PM	#2
cleszkie Registered User Join Date: Feb 2003 Location: Santa Ana, CA Posts: 2,191	Re: Windshield Wiper Pump Problems No one ever experience this? Maybe its the uber-rare Corvette pump option.

06-13-2012, 07:56 PM	#3
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,700	Re: Windshield Wiper Pump Problems Maybe you should just fill up your fluid bottle with enough to clean the w/s one time...then it wouldnt matter if the pump was running Is there even a relay on that circuit, bet its a ground. Im guessing... Id drop down in the electrical section, and pose the question to them __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim Last edited by jaros44sr; 06-13-2012 at 10:33 PM.

06-14-2012, 12:29 PM	#4
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,700	Re: Windshield Wiper Pump Problems Just checked mine, it has a manual pump...so, i cant answer your question. Didnt even know they had electric pumps __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

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