Re: A strange thing happening with my A/C

From: Steve Preston (steveophonic@yahoo.com)
Date: Mon Aug 20 2007 - 21:07:36 EDT


I believe it,and should have thought of it,as many
condenser fan motors as I change. Can't believe I
didn't think of a fan-related problem.

Steve P.

--- DodgeDe@cs.com wrote:

>
> Well, it gets stranger!
>
> I took it to the shop and they said I need a new
> PCM.
>
> Here is their logic, the electric fan is not turning
> on. When they jumped it
> and turned the fan on they say the pressure in the
> A/C dropped.
>
> Is it possible that the with this fan not working it
> would drive the A/C
> pressure up to the 400 range on the high side on a
> 75 degree day? That is what the
> shop said.
>
> OK, so is this fan thing an on going problem with
> the 5.9's or all Dakota's
> and Durango's
>
> A while back somebody from the list helped me get
> the fan in the R/T working
> by grounding the relay. Now the same thing is
> happening with the Durango, both
> are 2000's
>
> As of yet I have not ck'd the wiring from the relay
> to the PCM on either
> vehicle. I would think since I have two doing the
> same thing there must be many
> more Dakota's and Durango's out there acting the
> same.
>
> So the fan relays on both were burnt.
>
> Anybody have an idea for what to look for on this.
> It would seem to me since
> the relays are smoked it is more than an open ground
> wire to the PCM on both
> vehicles.
>
> Looking forward your input
>
>
> Bill
> "We don't stop playing because we grow old; we grow
> old because we stop
> playing."
> -George Bernard Shaw
>
> 00 cc R/T Hemi Orange w/shacker hood
> 72, 440 Six Pack Charger Rally
> 00 Durango SLT Plus
>
>
> In a message dated 8/17/2007 11:11:40 PM Eastern
> Daylight Time,
> bernd@dodgetrucks.org writes:
> >
> > Without the numbers....hard to say exactly what's
> going on. Do you remember
> > at all or can you ask your buddy?
> >
> > - Bernd
> >
> > -----Original Message-----
> > From: DodgeDe@cs.com [mailto:DodgeDe@cs.com]
> > Sent: Friday, August 17, 2007 9:10 PM
> > To: compuserve@dakota-truck.net
> > Subject: Re: DML: A strange thing happening with
> my A/C
> >
> >
> > Well, I put a set of gages that a friend has on
> but we aren't too sure of
> > what it should be. He thinks the low side is where
> it is supposed to be and
> > the
> > high side looks normal at ideal but at higher
> RPM's it goes to what he
> > thought
> > was too high. Sorry I didn't right down the
> numbers.
> >
> > Bernd both of what you say is happening. When the
> outside temp is above 95
> > the clutch starts to engage then it pops off and
> will not engage . As the
> > outside temp goes down when you turn it on the
> clutch engages and it blows
> > great
> > cold air.
> >
> > Does this help give anybody an idea of what to
> change? Or what to test to
> > figure this out.
> >
> > Thanks
> >
> > Bill
> >
> >
> >
> > In a message dated 8/16/2007 11:47:45 PM Eastern
> Daylight Time,
> > bernd@dodgetrucks.org writes:
> > >
> > >If the pressure is too high, the high pressure
> switch will turn off the
> > >compressor. However, if the system is plugged
> before the switch, the
> > >pressure relief valve on the compressor will
> open.
> > >
> > >- Bernd
> > >
> > >-----Original Message-----
> > >From: Steve Preston
> [mailto:steveophonic@yahoo.com]
> > >Sent: Thursday, August 16, 2007 9:00 PM
> > >To: dakota-truck@dakota-truck.net
> > >Subject: Re: DML: A strange thing happening with
> my A/C
> > >
> > >
> > >Replying to myself...
> > >
> > >Actually,I don't think the head pressure could
> get too
> > >high unless the high pressure cutout switch was
> bad.
> > >Happening only on hot days does sound like too
> much
> > >pressure for whatever reason.
> > >
> > >Steve P.
> > >
> > >
> > >--- Steve Preston <steveophonic@yahoo.com> wrote:
> > >
> > >>
> > >>Maybe dirty condenser coil? Head pressure's too
> > >>high,maybe the compressor is bypassing.
> > >>
> > >>Steve P.
> > >>
> > >>--- DodgeDe@cs.com wrote:
> > >>
> > >>>
> > >>>Hi All,
> > >>>
> > >>>I have a strange thing happening with my A/C
> > >>(2000
> > >>>5.9 Durango)
> > >>>
> > >>>It works great blowing 45 to 55 degree air as
> long
> > >>>as the outside temp is
> > >>>below about 95
> > >>>
> > >>>Above 95 when I turn it on the clutch tries to
> > >>>engage and there is a pop of
> > >>>type noise and the clutch will not engage. The
> pop
> > >>>seems to be a pop off type
> > >>>valve as it releases a bit of freon with each
> pop.
> > >>>
> > >>>So anybody have any ideas
> > >>>
> > >>>Thanks
> > >>>
> > >>>Bill
> > >>>"We don't stop playing because we grow old; we
> > >>grow
> > >>>old because we stop
> > >>>playing."
> > >>>-George Bernard Shaw
> > >>>
> > >>>00 cc R/T Hemi Orange w/shacker hood
> > >>>72, 440 Six Pack Charger Rally
> > >>>
> > >>>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >_
> >
>
>
>
>
>

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