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Date: Tue, 15 Oct 2002 19:17:28 -0400
From: Bob <uctraingNOSPAMnopsamanet.com>
Subject: Re: Wipers - Check Valves do what ???


On Tue, 15 Oct 2002 15:34:07 -0400, KeithG <noonenopsamspring.com> wrote: >The check valves ensure that there is a solid line of fluid between the >pump and the nozzle. This is so that a) the pump does not have to work >very long b) that there is fluid for the duration of the wipe 'cycle' >(3-5 swipes) c)so that the hoses do not 'crud up' as the fluid >evaporates in the warm environment of the engine bay. That's where I'm puzzled.... won't the first valve in the line (the "T" valve) hold the fluid in the hose for both jets ? If it can't drain back past the first valve, then it stays up in the section of the house for the second jet, right ? Or does it only "check" the very short 1" hose from the "T" to the jet ? It seems like one check valve would so the same job for both jets (?) > The check valves are about 6.00 each from saabsite.com IIRC. Hey, don't ruin my day ! Actually, I was in a jam as I need to get the car inspected. Believe it or not, they check to see that your wipers and washers are working. >The check valves CAN also be repaired. Interesting. I'll be digging in tonight :-) Bob

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