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a/c works and then doesnt...

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Old Aug 3, 2011 | 03:50 PM
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a/c works and then doesnt...

Well with all this heat it is time to figure out my air conditioner.... when first turned on it works great, and sometimes will work for a while, but eventually it quits blowing cold and it gets humid in the truck, I checked charge with one of those cheapo deals that come w a can of charge, and it checks out good, I replaced my low pressure switch and still the same any one have a suggestion?
 
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Old Aug 3, 2011 | 03:53 PM
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Is the clutch puulung in - Maybe its disengaging after running awhile- What are your pressures ?
 
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Old Aug 3, 2011 | 03:58 PM
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The clutch does disengage, however I forgot to add if I shut it off after it quits blowing cold for say 2-3 minutes then it will work again for a short period of time.... my pressure I believe was around 30-35 according to the cheapo gauge...
 
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Old Aug 3, 2011 | 04:17 PM
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This fixed mine SpringerPop's Compressor Clutch Air Gap and many others here. Simple, 30min job.
 
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Old Aug 3, 2011 | 04:18 PM
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Ahh you beat me to it. Was gonna post that
 
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Old Aug 3, 2011 | 04:26 PM
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Yep, didn't know how badly mine was working until I got it working right.
 
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Old Aug 3, 2011 | 04:51 PM
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Ah thanks! Looks like a likely culprit, and I love quick cheap fixes!
 
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Old Aug 3, 2011 | 05:18 PM
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Mine only had one shim and was perfect when I removed it.
 
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Old Aug 3, 2011 | 09:26 PM
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HOLY CRAP!!! Been playing with my AC for a few weeks... reading this thread and decided to check the air gap on my AC...

should be in the .020 range from what I am reading...

MINE........




.049! Over TWICE what it should be. Going to try and adjust it tomorrow.
 
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Old Aug 3, 2011 | 09:29 PM
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I'm betting that will fix it. Mine was around .050 and wouldn't stay in when at idle.
 
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Old Aug 3, 2011 | 09:39 PM
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Originally Posted by zx250
I'm betting that will fix it. Mine was around .050 and wouldn't stay in when at idle.
Looks pretty easy on the write up, any concerns?
 
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Old Aug 3, 2011 | 09:41 PM
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Originally Posted by zx250
I'm betting that will fix it. Mine was around .050 and wouldn't stay in when at idle.
Yea seems if I kick mine down it'll come back, I bet this is the problem I will adjust it tmmrw.... I love this site... best tool ever!
 
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Old Aug 3, 2011 | 09:43 PM
  #13  
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Only takes about 5 minutes to remove the nut, throw away the spacer and reinstall, why wait! LOL
 
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Old Aug 3, 2011 | 10:03 PM
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No concerns at all its easier than it looks.
 
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Old Aug 3, 2011 | 10:33 PM
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Concerns

The only concern is after you do the mod, it will eventually wear down into the mounting studs and spark. I did the mod 2 years ago, two weeks ago, mine finally ran out of surface area and started to slip and spark a touch. Awesome mod, buys 2 years more time before you have to replace the clutch assembly, assembly was 120 through my local napa guy, no big deal. Highly recomend doing the reshim, and being as i bought mine used, it might have been the second reshim, I do not know.
 
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