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Date:         Fri, 17 Oct 2014 11:00:02 -0700
Reply-To:     Dan N <dn92610@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dan N <dn92610@GMAIL.COM>
Subject:      Re: High idle w. A/C on... please help
Comments: To: mark drillock <mdrillock@cox.net>
In-Reply-To:  <54415323.8040206@cox.net>
Content-Type: text/plain; charset=UTF-8

thanks Mark...

on my others Vanagon I get 1200RPM at idle with A/C on and not 2K RPM, I think it's too much but 1400RPM is acceptable.

dan

On Fri, Oct 17, 2014 at 10:34 AM, mark drillock <mdrillock@cox.net> wrote:

> The idle is supposed to increase when the A/C is on. There is a wire > from the A/C compressor clutch over to the idle control unit so the idle > control unit will know to increase the idle speed so the A/C doesn't > stall the engine. I don't know what the idle speed rpm increase is > supposed to be but maybe someone else does. > > That year should have the later trinary pressure switch and this could > be giving a false indication of a need for medium fan speed. Or maybe > someone could have fooled with the wiring to make it do this? > > Mark > > > Dan N wrote: > >> hi all, >> >> 1990' Carat - recently purchased - rebuilt engine - smooth idle 950 RPM - >> A/C recently serviced, cold air, new fan switch. >> >> When I turn the A/C on the idle jumps to 2000 RPM - the fan goes to medium >> speed all the time. >> >> What part or parts that triggers the idle? >> >> What part or parts that triggers the fan? >> >> please help - I search in the archive and only found an April 2000 >> article >> about this.. >> >> many thanks in advance >> >> dan >> >>


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