A/C woes'...Auto Temp...1970 Model year...

["chr gra" <c_bodycrazy@xxxxxxxxxxx>]

Hey Everyone!

I thought it be best to keep this updated as possible.

I tested the main and compressor switch along w/ a few other things I felt 
seemed like "Why is this here??" kind of a thing.  But hey, it's something 
new and extremely enjoyable!!!!  Anyhow, I tested the last switch in the A/C 
system (Compressor Ambient Switch) and found it to be open (no continuity 
when testing it w/ an ohm meter).  Well, it a servicable switch which is 
awesome!  It is located just off to the right of center of the engine on the 
bulk head (fire wall).  I adjusted it so that it would close (make contact) 
properly...well, as best as I could due to not knowing how to do it since it 
was my first time.  Anyways, I checked the resistance prior to install and 
it is at 0.6 Ohms.  I installed it and fired her up.  She took off like it 
was new!...well, repaired.  :)

I switched the multimeter to measure temperature and while she sat in Tony's 
garage it was right about 47 degrees.  I know it'll cool down better going 
down the road.

I'll fully test it this week and let everyone know how things are going.

Thanks again everyone!

chris
'70 Imp LeBaron...working Auto Temp!


>From: ViaJoaquin@xxxxxxx
>Reply-To: mailing-list@xxxxxxxxxxxxxxxx
>To: mailing-list@xxxxxxxxxxxxxxxx
>Subject: Re: IML: A/C woes'...Auto Temp...1970 Model year...
>Date: Tue, 11 May 2004 13:52:26 -0400
>
>Chris,
>If you jump just the compressor switch the compressor should engage. If it 
>does, check the switch with a vacuum source, sucking on a short piece of 
>hose will do. Once you isolate that, you can move on to other tests. If the 
>fan doesn't come on when you push the "Auto" button, try pushing the "High 
>Def" button first and then the "Auto" button, that is a common problem when 
>the little vacuum check valves get old and dried out.
>
>Roy
>67 Crown FDHT
>
>In a message dated 5/11/2004 1:02:02 PM Eastern Daylight Time, "chr gra" 
><c_bodycrazy@xxxxxxxxxxx> writes:
>
> >Hey everyone,
> >
> >I searched the archives and found little help on this.
> >
> >I charged the system (converted to 134-A) in my '70 LeBaron last night; 
>but,
> >I had to run a 'hot' wire to the compressor to get it to run.  It has the
> >Auto Temp (not the Auto Temp 2 system...please note) HVAC system.  System
> >could use a partial can of refrigerant yet; but w/in opperating pressure.
> >
> >What I'ld like to know is if there is something commonly malfunctioning 
>on
> >this system to give me a base starting point in diagnosing the problem.
> >
> >What I have already checked:
> >1.  20A fuse...power both sides (heater A/C fuse) (used test light)
> >2.  No power to compressor (used test light)
> >3.  No power present at the Low Pressure cut-off switch (used test light)
> >4   Vacuum lines all hooked up
> >
> >I used a test light to check for power; but, I didn't have my Multimeter 
>to
> >check how much power was present or the resistances of the switches.
> >
> >I have located the Master Switch and Compressor Switch under the right 
>side
> >of the dash.  I didn't test these due to it being midnight, last night.
> >
> >I have great hopes in working on the A/C tonight.  I will have my 
>multimeter
> >and vacuum gage/pump to better diagnos the system.
> >
> >Out of curiosity...if I jump the Low Pressure Switch, Compressor Switch, 
>and
> >Master Switch will the A/C compressor run/engage regardless???
> >
> >Please help as you can.  I'ld really like the A/C to work on the 
>Chattanooga
> >trip in a couple weeks.
> >
> >Thanks!
> >
> >chris
> >'70 Imperial LeBaron
> >
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