I had a problem with a vehicle with rear air. The dealer told me it would
cost a fortune because of corrosion in the system, so I drove it on the
front air for a couple years more. Then I got to thinking and realized that
he was flinging bull. It turned out that the Thermal expansion valve for
the rear had a kink in it that bled the fluid out of the valve. The TXV is
purely gas operated, and the operation of the valve has nothing to do with
the rest of the system. The fluid in the valve evapaorates at a certain
temperature, opening the valve which allows cold freon to enter the cooling
coils. When the coils are cold enough, the fluid in the valve shrinks and
closes the valve. When the fluid in the valve leaks out, the valve thinks
the system is cold, and will not allow more cold freon into the evaporator.
Go see a real air conditioning mechanic who can diagnose simple problems.
JOhn
----- Original Message -----
From: "KerryPinkerton" <pinkertonk@xxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Monday, August 12, 2002 5:39 AM
Subject: Re: IML: 66 rear air trouble
> Humm, I'd think the rear unit had another problem as
> there is only one compressor and the units share
> freon. If the front unit was still working there must
> have been something else. Checking the charge is a
> definite first step.
>
> Kerryp
>
> --- Matt Hopkins <mhoppy@xxxxxxxxxxx> wrote:
> > My 66 rear air began blowing hot last fall, now the
> > front is too, recharging I'm sure, but are the two
> > related and has anyone worked on the rear air which
> > is a fine feature when functioning properly.
> >
> > Matt Hopkins
> > 66 Crown
> > 75 Lebaron
> > 92 Imperial
> >
>
>
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