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      05-22-2013, 11:51 AM   #18
Sparkee
Stability is Overrated
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Drives: '08 E90 328i Sedan
Join Date: Nov 2011
Location: MD


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In my case, the tank would slowly leak down to empty. So, expansion of the fluid clearly wasn't the issue. After pulling the tank, I hung the pump between two elevated hoses holding fluid/water, one still attached on the washer jet side the other a hose I had laying around. I could see the water leaking out of the side of the pump at a rate of about a drip every 5 seconds with this arrangement. It turned out to be a good way to prove it was the pump.

I am glad Danny's fix worked too...

Last edited by Sparkee; 05-22-2013 at 11:52 AM. Reason: grammar