Date: Tue, 10 Aug 2010 19:42:19 -0500
Reply-To: Michael Sullivan <sandwichhead@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Michael Sullivan <sandwichhead@GMAIL.COM>
Subject: Re: Replacing pressure A/C Pressure switch w/o losing Freon
In-Reply-To: <009501cb38eb$01544100$03fcc300$@net>
Content-Type: text/plain; charset=ISO-8859-1
Thanks for the brainstorming, Tom. I took it to the A/C guy a week ago and
he called and said the pressure switch was bad. I asked how he knew, and he
said it is one of the first things they test. SOOO, I added a can last week
with the old switch on and still felt the same medium cooling that I have
always felt. SO I feel the system has plenty, but gonna check with a gauge
tomorrow. Was really surprised when I put the new switch in and no change.
I actually drove about a mile and realized I was almost out of gas so pulled
to the gas station and shut off and no fan noise, but after 5 miles of
driving and coming home, the fan stayed on until I pulled the harness off
the new switch out. When I reconnected 15 secs later, all quiet.
Will check freon level with gauge tomorrow and post the findings. Thanks
again to all.
Michael in San Antonio
91GL Weekender AT 2.1L 'Gringo'
On Tue, Aug 10, 2010 at 7:20 PM, Tom Hargrave <thargrav@hiwaay.net> wrote:
> Usually that's a sign of low Freon. You may be leaking past the seal or
> maybe the switch has been doing its job all along & not letting the system
> run with a low charge.
>
> Tom
> www.towercooler.com
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
> Michael Sullivan
> Sent: Tuesday, August 10, 2010 6:58 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Replacing pressure A/C Pressure switch w/o losing Freon
>
> Bad news...no cool air. Drove about 5 miles. When I got home the fan in
> front ran for 5 minutes until I pulled the harness on the new switch in the
> rear D pillar and the fan stopped. Plugged it back in and all good.
> Scratchin' my head.
> Michael in San Antonio
> 91GL Weekender AT 2.1L 'Gringo'
>
>
>
> On Tue, Aug 10, 2010 at 5:50 PM, Michael Sullivan
> <sandwichhead@gmail.com>wrote:
>
> > OK....As you all know, I am fearless!! So I pulled the old switch out
> > and just pointed that end of the van toward the Honda in case it flew
> > off like a projectile. Anyway, popped right off and the little valve
> > behind worked like a charm. Popped the new one on in a about a minute.
> No loss of freon.
> > Gonna take a spin. Thanks to all.
> > BTW-New switch and old one are made in UK by RANCO(?). Says VW Audi on
> it.
> > Got mine on Ebay for 40.00.
> >
> > Michael in San Antonio
> > 91GL Weekender AT 2.1L 'Gringo'
> >
> >
> >
> > On Tue, Aug 10, 2010 at 5:11 PM, Edward Maglott
> <emaglott3@gmail.com>wrote:
> >
> >> You might check with community colleges or tech schools that have an
> >> auto tech program. The one where I work usually teaches AC stuff in
> >> the Summer. You might get them to suck out the refrigerant, then you
> >> take the van and do your work, then they evacuate and refill with the
> >> refrigerant you provide or pay for.
> >> Edward
> >>
> >>
> >> At 05:15 PM 8/10/2010, Jeff Schwaia wrote:
> >>
> >>> Ah yes, expanded gas as opposed to compressed. My bad...
> >>>
> >>> -----Original Message-----
> >>> From: Mike S [mailto:mikes@flatsurface.com]
> >>> Sent: Tuesday, August 10, 2010 1:01 PM
> >>> To: Jeff Schwaia
> >>> Cc: vanagon@GERRY.VANAGON.COM
> >>> Subject: Re: Replacing pressure A/C Pressure switch w/o losing Freon
> >>>
> >>> At 03:28 PM 8/10/2010, Jeff Schwaia wrote...
> >>> >"270 liters of oily freon gas"... You must have the optional
> >>> >super-duper, heavy duty A/C system! ;-)
> >>>
> >>> R-134a weighs ~4.25 kg/1000 liters at atmospheric pressure and room
> >>> temperature, so 270 liters is about 1.15 kg of freon. VW says the
> >>> Vanagon holds 1.35 kg of R134a, so really, he must have the
> >>> slightly-shrunken, light duty system.
> >>>
> >>
> >
>
>
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