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  #1  
Old 06-25-2013, 10:49 AM
LSO1123 LSO1123 is offline
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A/C gets warm while at idle

Hey guys,

As it got warm this summer and I started using the A/C in my truck I've noticed that if the truck sets at idle for longer than just a minute or two, the A/C will start blowing warm air, not like heat or anything, just not cold. As long as I'm driving it blows nice and cold. It also takes longer than it should to start blowing cold air when I first start the truck and drive somewhere. I've checked the freon and it's good. Is the compressor getting weak or could it be another issue?
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Old 06-25-2013, 11:01 AM
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Have you checked the Compressor Gap, per SpringerPop's write-up?

SpringerPop's Compressor Clutch Air Gap
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Old 06-25-2013, 11:23 AM
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Check compressor gap. See what your psis are. Also, make sure there are no weeds etc in radiator and condensor area. However, its not uncommon for the a.c to blow slightly warmer at idle than at other speeds.
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Old 06-25-2013, 11:40 AM
LSO1123 LSO1123 is offline
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Thanks for the advise guys, I'd never heard of compressor air gap before so I'll check that. As far as the PSI goes, what should it be? The radiator and condenser area is probably due to be cleaned out so I'll do that also. It's not just slightly warmer, It's alot warmer like if you turned the switch to just fan and not A/C.
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Old 06-25-2013, 01:23 PM
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Sounds like gap or low freon
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Old 06-25-2013, 01:25 PM
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Yes, low freon is another possible cause here.

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Old 06-26-2013, 12:47 PM
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My truck was doing the same thing. Roland and I took the shim out of the clutch this last Saturday and that fixed it. Takes about 5 mins to do this if you take your time.
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Old 06-26-2013, 09:58 PM
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Yes pull the shim off the Compressor. It fixed mine up great.

Just be slow win pulling the front plate off so shim doesn't drop. Think its like a 10 mm socket and 2 small screwdrivers. 5 mins.
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Old 06-26-2013, 10:30 PM
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Quote:
Originally Posted by petrokiller View Post
Yes pull the shim off the Compressor. It fixed mine up great.

Just be slow win pulling the front plate off so shim doesn't drop. Think its like a 10 mm socket and 2 small screwdrivers. 5 mins.
Actually, it is a 8 mm on the clutch shoe retaining bolt.
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Old 06-26-2013, 11:23 PM
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Thank you for the correction
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Old 06-27-2013, 06:01 AM
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I learn something new on here all the time - thanks!

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Old 06-28-2013, 04:47 PM
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I began to experience the same thing when my alternator started going out. The low RPM simply could not keep the appropriate level of charge going. I would try the compressor shim first, and if that doesn't take care of the problem, then have your alternator checked.
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Old 06-28-2013, 04:47 PM
 
 
 
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