It's so hot outside.
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Elder User
Joined: May 2003
Posts: 575
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From: Orlando, FL
It's so hot outside.
Ok, now that it is hot out I have finally broken down and started using my air conditioner. After letting it run for awhile it gets cold just like any 15 year old vehicle should. What I want to know is, if I can make my air conditioner get colder can I turn the temperature up (warmer) and make the compressor work less? If so, I already bought a recharge can of 134a, my system has been converted before I bought it, and I attempted to add more colant and the guage on the can says that I am at max. pressure and I should not add anymore. What should I do? It just doesn't seem like it works well enough, the reason I say this is because if it is not on Max AC then it gets warm in the cab.
Elder User
Joined: Dec 2003
Posts: 655
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From: Miami
It could be a faulty pressure switch cutting the A/C off early. Also the Evap coil could be dirty. Pull the fan inside the engine compartment and then look to see what the evap coil looks like. A dirty coil or a piece of paper that got sucked up and could be blocking airflow causing it to shutdown early ( prerssure switch is what turns off and on the compressor). You can spray some de-greaser on the evap then hose it off with a spray nozzle from top to bottom. Using short burst's to allow the water to drain out the condensate drain.
Al
Al
Cargo Master
Joined: Nov 2003
Posts: 2,000
Likes: 39
From: North Dakota
My truck was also converted to the 134a. It does not get as cold as the old r-12 does, but it is cheaper. Our low last night was 93* and the high today was 119*. 
Needless to say, around town, my a/c does not cut it. I just roll the windows down and the wings open. Kinda like a blow dryer in your face. When the the temp gets below 105* or so it works fine. I would do what broncoroadkill said and just leave it on max. Ha, it is 10:30 at night here and I just checked the temperature, only 103*. I have lived here all my life, and I still would rather handle two months of this then snow any day.
Needless to say, around town, my a/c does not cut it. I just roll the windows down and the wings open. Kinda like a blow dryer in your face. When the the temp gets below 105* or so it works fine. I would do what broncoroadkill said and just leave it on max. Ha, it is 10:30 at night here and I just checked the temperature, only 103*. I have lived here all my life, and I still would rather handle two months of this then snow any day.
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Elder User
Joined: May 2003
Posts: 575
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From: Orlando, FL
Can't wait for that snow! Gotta love driving around and only having about 50% control of your vehicle. I guess it works ok, just thought that maybe there was some sort of easy fix to make it colder.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
Hell my 77 F-100 blows freazing cold air the second I turn it on, but I'm to cheap to use it. My Bronco has the compressor sitting inside a bucket in my room, like I said I'm to cheap to run a/c so there is no need for me to install my compressor, just let the windows down and turn on the vent for some extra air flow.
Posting Guru
Joined: Sep 2002
Posts: 2,195
Likes: 1
From: San Antonio, Texas
Hey kameronth I have a buddy that lives in vegas. Our highs here in south texas have been 90s-100 and I call my buddy daily too brag about the lower temps.
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Posting Guru
Joined: Jan 2003
Posts: 1,388
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From: SE Texas
buckeye, I agree that you should run the AC on MAX. Check the condenser in front of the radiator to be sure it's free of bugs and stuff, as it will not cool as well if clogged up. I also think the 134-A systems do not get as cold as the old r-12, but have done the conversion, too. My solution was to remove the hardtop, as it is dark blue and would add to the internal heat. A white top should run alot cooler. I have one of those for a spare, but love being topless too much here in SE TX.
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Joined: Mar 2000
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From: USA
You guys back home don't know what hot is...
Over here - in the crappy GM Hummers - they run @ 240 engine temp and it is 120 outside... and about 100 inside the Hummer with the A/C cranked! I put bags of ice on my feet as I drive to keep my feet cool as the heat from the engine heats up the belly of the Hummer...
Over here - in the crappy GM Hummers - they run @ 240 engine temp and it is 120 outside... and about 100 inside the Hummer with the A/C cranked! I put bags of ice on my feet as I drive to keep my feet cool as the heat from the engine heats up the belly of the Hummer...