Hey Pete
The best way to charge is going to be with a set of gauges that lat you
measure the high and low pressure in the system. High being after the
compressor low before. There are also some calculations you need to
make depending on the ambient outside temp. I'd say your not gonna know
exactly where your system is with that pressure gauge. How many cans
did you add to the system?
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Peter
Grace
Sent: Sunday, June 29, 2003 4:53 PM
To: dml@dakota-truck.net
Subject: DML: Air Conditioning Recharge
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Hey guys,
I finally was fed up with this hot weather and fed up with
my non-functional A/C system. While I was at walmart
getting wiper blades for Kristy's car, I opted to buy one
of those A/C recharge kits from interdynamics. I got the
kit with the pressure valve on it (Wow, useful little piece
of technology)..
Anyway, I charged up my system and now finally my A/C compressor
stays on instead of momentarily turning on, then staying off for a few
seconds, then turning back on (I guess it has to do with refridgerant
pressure -- I learn something new everyday!). The air is, eh, somewhat
cool... It's not like I'm going to get frostbite, like how it is in
Kristy's Honda. I read something somewhere that if you overpressurize
the system, the AC will not put out maximum chill. I currently have the
charge at about 42-43psi with the A/C on, which is within the
"operational range" of the gauge (the blue area).
My question is thus: Do you guys know of the particular
pressure which allows you to achieve maximum cooling?
After driving around for 10 miles or so it was comfortable,
on the side of cool inside the club cab, but, that was 20 minutes...
Should it really take 20 mins for the dakota to get cool from a nice hot
day like today? The thermometer at willow grove says 82F with a
relative humidity 54.6% and barometer at 30.13in. I know that
atmospheric conditions can alter the pressure readings of one of these
gauges. My guess is that in my asphalt parking lot with the sun beating
straight down on the truck, the temperature under the hood was in the
high 90's.
Any suggestions would be appreciated, you guys have helped
me before with a lot of other stuff! Not a day goes by
that I don't learn something new about the care and
maintenance of my baby!
Thanks,
Pete
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