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Old Aug 31, 2006 | 01:20 PM
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Default A/c HELP

How much R-134a does the a/c system in a 98 formula hold? I broke a hose and now putting new freon into the system. Just want to know how much it takes when it's completely dry.
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Old Aug 31, 2006 | 03:04 PM
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Can you overfil the a/c and what happens if you do?

Last edited by 777; Aug 31, 2006 at 03:25 PM.
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Old Aug 31, 2006 | 04:38 PM
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1.5 lbs.

Overcharging can cause system damage.
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Old Aug 31, 2006 | 04:58 PM
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Ok, well can someone tell me what my problem is. Overcharging, undercharging, or bad compressor, or something else. I broke my ac line (the one with the sensor on it) well I got a new one. Now there is nothing in the system at all. I put one can of r134a in it. It had 13oz of that and 2 oz of oil. I put it in while the air was running. Well the compressor never kicked on. So I added half of another. Compressor still never kicked on. So I added the rest. I turned the car off and started it back up the compressor kicked on for about 15 seconds and then shut off. It now blows air that is hotter than the vents, but not by much. Everytime I let it sit for 15 minutes or so the compressor will kick on when i start it and do the same thing. What do I need to do.
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Old Aug 31, 2006 | 05:23 PM
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Needs more freon.

You really need to hook some gauges up and see what the pressures are or take it to a pro. I work on a/c for a living and if you dont know what your doing you can **** up more then you fix..
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Old Aug 31, 2006 | 05:26 PM
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ok will do thanks
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Old Aug 31, 2006 | 05:26 PM
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Do you have guages so you can see the pressures? After pulling a vacuum and adding referigerant pressures depend on ambient temp/humidity, for example:

86-95*, 30%+humidity - 42-46 psi low/218-261 psi high side.
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Old Aug 31, 2006 | 05:32 PM
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Yeah I don't have gauges. I should have just let someone do it in the first place but I'm retarded.
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Old Aug 31, 2006 | 09:18 PM
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did you vacuum the system down first? BTW, i posted in your other ac thread b4 i saw this one.
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Old Sep 1, 2006 | 11:59 AM
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Well got the car back from the mechanic. Said he couldn't figure out what's the deal because the freon was at the right level. The compressors kicks on, but just for a little bit then it shuts off and won't come back on until the car is turned off let sit for a few minutes and then started back again.

The tube going from the hvac stuff in the back of the engine bay to the condensor. There's a sensor on it by the fenderwell. What does that sensor control? That's the tube I had to replace and wonder if it's something to do with that as it's not a new line.
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Old Sep 1, 2006 | 03:56 PM
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A/C IS WORKING!!!! I just changed out the pressure sensor with my old one (that was in the trash, I got lucky) and it's working now.
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Old Sep 2, 2006 | 02:16 AM
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defff. hook a guage up to it and see how much its reading.

sry bout the flywheel incident 777! i decided to go with the resurfaced stocker and its working fine
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Old Sep 2, 2006 | 08:40 AM
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It's all good, I sold it yesterday to someone else anyhow.
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