Girlfriends G6 GT - Pontiac G6 Forum
 
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post #1 of 5 (permalink) Old 06-03-2012, 04:40 PM Thread Starter
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Girlfriends G6 GT

Some reason on her car it takes forever for the car to cool off on max a/c, depends on how hot it is outside, but I put a gauge on the low side and it's very high for 10 minutes and then all of a sudden the gauge starts reading 35-40 on a 90*+ day, could that be a low pressure switch going bad and if that's the case do they even have a low pressure switch on these G6's, just curious..... It almost sounds electrical, because there seems to be plenty of freon in the system.....
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post #2 of 5 (permalink) Old 06-03-2012, 06:08 PM
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Check the freon....

MODS:
Crab Intakes CAB, MPD Ram Air hood, Custom exhaust,
WAMS High Performance Tune and a whole lot more....

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post #3 of 5 (permalink) Old 06-04-2012, 08:20 AM Thread Starter
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Car has a full charge so it's not freon.....
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post #4 of 5 (permalink) Old 06-04-2012, 11:35 AM
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Quote:
Originally Posted by Jrock909 View Post
Some reason on her car it takes forever for the car to cool off on max a/c, depends on how hot it is outside, but I put a gauge on the low side and it's very high for 10 minutes and then all of a sudden the gauge starts reading 35-40 on a 90*+ day, could that be a low pressure switch going bad and if that's the case do they even have a low pressure switch on these G6's, just curious..... It almost sounds electrical, because there seems to be plenty of freon in the system.....
Yes, there is a pressure sensor that disables the compressor for too high or too low system pressure.

Is the compressor engaging at all?



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post #5 of 5 (permalink) Old 06-05-2012, 10:42 AM
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Low side pressure has no value for determining refrigerant quantity. Only evacuate and measure or high low gauge set if you have experience.
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