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Old 12-17-2017, 10:22 AM   #1
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Windshield Washer Reservoir

This is a new one.

I fill the washer reservoir and it's empty in no time. Must have a leak. I've never come across a leaking washer fluid reservoir. Anyone else dealt with this?
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Old 12-17-2017, 11:21 AM   #2
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Re: Windshield Washer Reservoir

The washer pump is located on the outside of the tank at the bottom and a likely culprit. I've had to change the pumps on my '04 and '05. The bodies cracked and let the fluid drain out.
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Old 12-18-2017, 02:31 AM   #3
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Re: Windshield Washer Reservoir

If it doesn't just run out on the ground when you fill it, it could be the hose from the pump has a hole in it by the battery.
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Old 12-18-2017, 03:39 AM   #4
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Re: Windshield Washer Reservoir

^ yep, my '02 had a b/o hose..

one day filling it up, started peeing on the ground half way full..

figured the res was cracked, ordered replacement, and found hose when I pulled it..

thankfully, dealer took the new unmolested res back no worries
I started out with nothing - and I still have most of it
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Old 12-18-2017, 09:10 AM   #5
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Re: Windshield Washer Reservoir

Dont know if this was your problem or not , but gm had a problem with battery acid deteriorating the components . The battery sits right at it . I could fill mine and it would run out until it was half full and then stop . I had parted a 04 out and had an extra . Installed it in my 06 and no more leak .
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Old 12-18-2017, 09:23 AM   #6
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Re: Windshield Washer Reservoir

Normally its the pump breaking pull back the driver side inner linner and take a look they are like 29 buxs if you need a tank dorman sells them
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