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A/C not working

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Old Jul 7, 2017 | 08:05 PM
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A/C not working

Well I suppose it's a good thing I haven't had to post a problem in a long time.
Life has been very busy which sucks.....hate not being active on here.....anyway. It's getting hot here and my account doesn't want to blow cold. I went to add some freon today but it was full (scared I had a leaky condenser) Other than blowing hot it seems the compressor clutch cycles every few seconds and only for a few seconds. Any ideas??
 
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Old Jul 7, 2017 | 10:07 PM
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Scan to see if the PCM has any stored codes for the A/C system.
 
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Old Jul 8, 2017 | 07:57 AM
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Do you have a set of gauges? Pressures usually tell the tale on an A/C system. If there are no leaks and the system is not overcharged then maybe the pressure switch went bad?
 
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Old Jul 8, 2017 | 08:12 AM
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Didn't know the ac could throw a code....I don't have gauges but can get that checked. I'll take a look at both. As usual..thanks!
 
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Old Jul 8, 2017 | 08:34 AM
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Originally Posted by KDAVID1
Well I suppose it's a good thing I haven't had to post a problem in a long time.
Life has been very busy which sucks.....hate not being active on here.....anyway. It's getting hot here and my account doesn't want to blow cold. I went to add some freon today but it was full (scared I had a leaky condenser) Other than blowing hot it seems the compressor clutch cycles every few seconds and only for a few seconds. Any ideas??
With out gauges you have no idea wether the freon is full, over filled or low. Cycling could be either low or high head pressure.
 
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Old Jul 8, 2017 | 10:22 AM
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Gotha....was using to gauge on the can....was in range...on the can that is.
When to compressor would cycle it would go to range then back to zero?
 
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Old Jul 8, 2017 | 11:46 AM
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That gauge on the can attempts to show the low pressure side. I would not trust it much. I did that once and the system started to vent when the compressor turned on. Overcharge and the gauge on the can was in the green.

I just recharged my Suburban. Bought the gauges and vac pump. Changed the receiver/drier and orifice tube. Vac'ed the system, charged based on the proper charge for the vehicle and I am blowing in the low 40 degree range consistently .
 
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Old Jul 8, 2017 | 01:25 PM
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Nice....well I was low on freon. Got a neighborhood buddy to hook is gauges up....he put a can in and it's blowing cold. Now my question is how long it will last. I must have a leak somewhere....for another time I guess.
I do need to get some gauges and a vac pump to do this stuff myself.
 
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Old Jul 8, 2017 | 04:03 PM
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Cool! No pun intended. lol
It was about 90 today, had the a/c on recirc and it got down to 38 degrees.
 
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Old Jul 8, 2017 | 05:27 PM
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Man I don't think mine has ever been like that.
Guess it pays to vacuum and refill properly. I'll know tomorrow if it still holds.
I'm optimistic.
 
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Old Jul 8, 2017 | 06:14 PM
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Originally Posted by KDAVID1
Nice....well I was low on freon. Got a neighborhood buddy to hook is gauges up....he put a can in and it's blowing cold. Now my question is how long it will last. I must have a leak somewhere....for another time I guess.
I do need to get some gauges and a vac pump to do this stuff myself.
Too many people trust the gauges on the self help cans. Some times it works out. Slug a compressor and you'll wish you'd paid a pro. You need to know the low and high side to see what's really happening.
 
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Old Jul 8, 2017 | 09:52 PM
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Originally Posted by 69cj
Too many people trust the gauges on the self help cans. Some times it works out. Slug a compressor and you'll wish you'd paid a pro. You need to know the low and high side to see what's really happening.
True....last 2 ac work I had (one a Bronco and the other a tahoe) both cost me 1500 each!
 
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