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Old 04-27-2011, 05:53 PM   #46
Scooby Newbie
Member#: 216142
Join Date: Jul 2009
Chapter/Region: South East
Location: Tennessee & Oregon depending..
'04 & 11 STi's
'10 & 14 Foresters


I ordered 5 of each o-ring in this thread and rebuilt my pump. I also replaced the stock crush washer (if that's what you want to call it). I cleaned the entire inside and outside of the pump with parts cleaner and blew it out with compressed air. I also replaced all the stock hoses with more OEM hoses and t-bolt clamps.

After I rebuilt it I bolted it up tight and put it back in the car and cleared all the air out of the system. I've got 200 miles on it and no leaks, bubbling or squealing and I'm sitting on 105K miles...

I am going to help another local STi owner fix his pump next week. Thanks to all that posted their experiences and fixes!!!
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