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2002 Impala AC Problems
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jbizub5192
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PostPosted: Thu Jun 02, 2011 11:22 am    Post subject:  2002 Impala AC Problems Reply with quote

Hi everyone, Last year I had to recharge the ac system because the system was low. I had to charge it again now because it low, Its only a small leak so I could put up with recharging it. The problem I have now is after I pulled a vacume on the system and then recharged it I still have no ac! But I did notice that the small ac line going into the firewall ices right up in about 30 seconds as soon as you turn the ac on. What could be causing the line to ice up which im pretty sure is the reason why I have no cold air. The compressor kicks right on like its supposed to but I get no cold air!

Thanks!!
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IffyG
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PostPosted: Thu Jun 02, 2011 11:44 am    Post subject:   Reply with quote

Might I recommend you quit wrecking the environment and get the leak fixed properly.

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jbizub5192
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PostPosted: Thu Jun 02, 2011 9:30 pm    Post subject:   Reply with quote

IffyG wrote:
Might I recommend you quit wrecking the environment and get the leak fixed properly.


Its not worth it to fix the leak properly with 160k on it. Its leaking by the evaporator. As far as it hurting the environment that little bit only like twice a year having to refill it will make almost no difference. I have a Ford f350 dually diesel that gets about 10mpg so the ac leak is like nothing lol.
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habermehl
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PostPosted: Thu Jun 02, 2011 10:35 pm    Post subject:   Reply with quote

You could just roll down your windows. Why would you ask about it if you wernt gonna get it fixed anyway? just dont use it if its broken and if you want to use it get it fixed!

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how do the dealer's expect us to get the cars there if they don 't run at all?


Tow Truck?
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jbizub5192
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PostPosted: Thu Jun 02, 2011 11:16 pm    Post subject:   Reply with quote

Its not that I dont want to get it fixed. I dont want/need to fix the evaporator bc I think that is were the leak is. I dont have a problem with having to refill it once a year. The problem is now the small line by the firewall is icing up and now I dont get any cold air. The ac was working fine last year I would only have to fill it once in a while.
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habermehl
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PostPosted: Thu Jun 02, 2011 11:32 pm    Post subject:   Reply with quote

Maybe the leak in your system has gotten bigger? what have you checked? Try fixing the leak......

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billy101 wrote:
Conner wrote:
how do the dealer's expect us to get the cars there if they don 't run at all?


Tow Truck?
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jbizub5192
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PostPosted: Fri Jun 03, 2011 12:31 am    Post subject:   Reply with quote

I don't think the leak has gotten any bigger because the compressor coming on and the high pressure was around 150 I believe and I forgot what the low was, I'm pretty sure it was around 30.
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MISHNAH
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PostPosted: Fri Jun 03, 2011 5:30 pm    Post subject:   Reply with quote

If the lines are freezing over, it means the compressor is sucking too hard and creating a vacuum. Like on mine, it will eventually ruin your compressor and fill the system with metal shards. Rolling Eyes More than likely, its the large line going out of the evaporator that is freezing over, since that is the suction line.

Your orifice tube is likely clogged up, its a $5 part but a pain to change it. Laughing If you lost all refrigerant, you should ALWAYS replace the drier prior to recharging.

The orifice tube is $5, drier $30, o-ring kit $12 at any of your local parts stores. Assuming there arent any other leaks in the lines or condenser or evaporator, these parts will basically "rebuild" your a/c system.

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GOTIT4CHEAP16
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PostPosted: Fri Jun 03, 2011 7:43 pm    Post subject:   Reply with quote

Where can i purchase the gasket that goes in between the ac compressor and line?

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jbizub5192
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PostPosted: Fri Jun 03, 2011 8:25 pm    Post subject:   Reply with quote

Thanks for the help! Whats odd is today I went out to double check that it was the small line but none of those lines are freezing up but I still have no cold air. Anyways the small line is ice cold(Im 99% sure that was the line that was freezing) the bigger line was warm(just from engine heat). Also the canister(cylinder) out of the back of the compressor was really hot, its right near the engine but should it be this hot? I could only hold my finger on it from about 5ish seconds then have to take my finger off. Where is the orifice tube and what needs to come off? From what you said that its a pain to get to im not having a good feeling lol, something tells me a lot has to come off. Thanks again!!

P.S. I also forgot to add last year in the fall the compressor was making a really loud weird noise so I disconnected it and figured i would worry about it in the spring. When i connected the compressor in the spring it didnt make any noise but no cold air. Does this sound like the compressor was starting to go and maybe put metal shaving in the lines now that's why there is a clog like u sorta said happened with yours? Thanks!
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MISHNAH
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PostPosted: Fri Jun 03, 2011 9:39 pm    Post subject:   Reply with quote

jbizub5192 wrote:
Thanks for the help! Whats odd is today I went out to double check that it was the small line but none of those lines are freezing up but I still have no cold air. Anyways the small line is ice cold(Im 99% sure that was the line that was freezing) the bigger line was warm(just from engine heat). Also the canister(cylinder) out of the back of the compressor was really hot, its right near the engine but should it be this hot? I could only hold my finger on it from about 5ish seconds then have to take my finger off. Where is the orifice tube and what needs to come off? From what you said that its a pain to get to im not having a good feeling lol, something tells me a lot has to come off. Thanks again!!

P.S. I also forgot to add last year in the fall the compressor was making a really loud weird noise so I disconnected it and figured i would worry about it in the spring. When i connected the compressor in the spring it didnt make any noise but no cold air. Does this sound like the compressor was starting to go and maybe put metal shaving in the lines now that's why there is a clog like u sorta said happened with yours? Thanks!


How did you "disconnect" the compressor? Did you unplug the connector? Or unbolt the hoses?

If you actually removed the hoses, you most definitely need to replace the drier if you ever want it to work decently.

The canister on the compressor is just a muffler, and it will be hot because its on the "hot" side of the compressor and also from the engine heat.

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2006 Mercedez-Benz E350 - Stock for stock, its faster than an SS, woot!
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jbizub5192
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PostPosted: Fri Jun 03, 2011 10:29 pm    Post subject:   Reply with quote

I just disconnected the electrical connector.
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MISHNAH
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PostPosted: Fri Jun 03, 2011 11:02 pm    Post subject:   Reply with quote

Hook up a set of gauges and see how the gauges move once the compressor is running, that'll tell you if theres enough refrigerant flowing around.

How much refrigerant did you add? It should be 3 cans in total. If you added that much, and the a/c compressor is working, then you may have a blockage somewhere.

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jbizub5192
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PostPosted: Fri Jun 03, 2011 11:38 pm    Post subject:   Reply with quote

Yea I put 3 cans in plus one can of stop leak. Ill hook up the gauges and see what its reading now. Thanks!
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PostPosted: Sat Jun 04, 2011 6:44 am    Post subject:   Reply with quote

Is the blend door(s) moving to pull air through the A/C side?
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