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2014 ATS 3.6L Performance
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7 Posts
Discussion Starter · #1 ·
After the car sits for about 24 hrs, upon starting the A/C blows hot but after the car runs for about 15 minutes while driving the A/C starts to cool and after a couple minutes it blows cold. If I stop the car for 2 to 12 hrs the A/C will be normal upon startup; not have to wait 15 minutes. Any ideas or advice before I take it to the dealership? I can live with this problem but other members of my family refuse to be hot for any length of time. thank, rrw
 

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2013 Cadillac ATS
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361 Posts
The system could be icing up due to a low charge, the orifice tube could be blocked by ice or debris. Put a set of gauges on it and check the pressures.
 

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2014 ATS 3.6L Performance
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7 Posts
Discussion Starter · #4 ·
Yesterday eve it took about 25 minutes to get cold and then after I reset the cue (not sure if that had the effect.) Then I turned a/c Off after parking the car and let it run for a minute or so when I started it 24 hrs later; (before turning a/c on) This time it took the normal time to cool. So still testing. Thank you for the responses.
 
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