Chassis A/C

[Gregory OConnor]

Randy, does the engine fan kick on when you ask for AC at the dash or
does the Low Pressure Switch turn the fan on ?
Greg
--- In WanderlodgeForum@yahoogroups.com, "randydupree2000"
wrote:
>
> ---ok,so now get a test light and check to see if you have power to
> the low pressure switch,if so,and the power is not going through
the
> switch you have either a bad switch,or no freon in the system.
> randy In WanderlodgeForum@yahoogroups.com, David Brady
> wrote:
> >
> > Thanks for the suggestion Randy, but no go on the wiggle.
> > I'll be visition Josam's in Orlando on Monday, maybe they
> > can have a look at it.
> >
> > David
> > '02 LXi, Smokey, Va
> >
> > randydupree wrote:
> >
> > >if you wiggle the wires on the low pressure switch on the
> compressor does it
> > >make it work? i have to do this alot on the GM cars we have.
with
> the ac
> > >turned on,engine running,wiggle the wires on the comp. and on
the
> hoses..
> > >randy
> > >----- Original Message -----
> > >From: "David Brady"
> > >To:
> > >Sent: Saturday, March 04, 2006 2:56 PM
> > >Subject: Re: [Wanderlodge_all] Re: Chassis A/C
> > >
> > >
> > >
> > >
> > >>Before an after a 100 mile drive I checked to see if the
> compressor
> > >>was clutching-up and it wasn't. Does anyone know what kind of
> > >>circuit breakers or fuses are in the compressor control path? a
> > >>schematic would be very useful. I have a decent set of tools
with
> > >>me so any suggestions for diagnosing are greatly appreciated.
> > >>
> > >>Thanks again,
> > >>David Brady
> > >>'02 LXi, Smokey, Va
> > >>
> > >>Gregory OConnor wrote:
> > >>
> > >>
> > >>
> > >>>David, does the engine fan clutch up? did you try this with the
> > >>>engine running and warm and the interior thermostat set lower
> than
> > >>>interior temp? some systems will not clutch up during startup
> of the
> > >>>vehicle. I have a 92 cummings M14 in a truck that stores
> codes for
> > >>>the ac functions. Having the computer read reveals volumns.
> > >>>Greg--- In Wanderlodge_all@yahoogroups.com, David Brady
>
> > >>>wrote:
> > >>>
> > >>>
> > >>>
> > >>>
> > >>>>Folks,
> > >>>>
> > >>>>My chassis air conditioning isn't working. I haven't
> > >>>>found any blown fuses or circuit breakers. The control
> > >>>>switch wiring looks okay. If I turn on the key and toggle
> > >>>>the dash ac switch I don't see any voltage changes on the
> > >>>>wires going to the compressor (in the engine compartment),
> > >>>>nor do I hear any relay chatter. The compressor doesn't
> > >>>>seem to be engaging. Any ideas on what I can check?
> > >>>>
> > >>>>Thanks,
> > >>>>David Brady
> > >>>>'02 LXi, Smokey, Va
> > >>>>
> > >>>>
> > >>>>--
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> > >>>3/1/2006
> > >>>
> > >>>
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> > >>>
> > >>>
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> > >>>Yahoo! Groups Links
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> 3/3/2006
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> > >
> > >
> > >
> > >
> > >Yahoo! Groups Links
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> > --
> > No virus found in this outgoing message.
> > Checked by AVG Free Edition.
> > Version: 7.1.375 / Virus Database: 268.1.2/274 - Release Date:
> 3/3/2006
> >
>