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Pontiac G6 Heating/Cooling

4 messages,  Last post on Apr 18, 2008 at 1:04 PM

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What is this discussion about? Pontiac G6, Heating / Cooling, Coupe, Convertible, Sedan

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#1 of 4 How the Auto AC in the G6 Really works by howardpm Mar 18, 2008 (6:04 pm)
So I'm a bit confused how the AC in the G6 works.   I turn on my car with both knobs on auto and the Air Conditioning light goes on. Now as far as I know most people aren't turning on the AC in the winter, also you tend to get worse gas mileage with this on. So I always turn it off.   Now it says in the manual the air conditioning compressor runs when the outside temperature is over at 40 degree F. Why would I want the AC on when its 40, maybe if its 80 or higher.   It also states when the air conditioning is selected or in AUTO mode, the system runs the air conditioning automatically to cool and dehumidify the air entering the vehicle, Again, if its cold outside why would anyone want the AC on it.
#2 of 4 A/C Issues? by mschianog6 Apr 18, 2008 (1:04 pm)
#3 of 4 A/C Issues? by mschianog6 Apr 18, 2008 (6:16 am)
Hey all,   I got my 2008 G6 at the end of January. Being that the weather has started to be warm, I've been using my a/c the last two-three weeks. However, the air is never cold.   I decided to bring my car in to have it checked out last Monday. They said they couldn't find anything wrong, but they would recharged the a/c for me. When I picked up the car the morning after and turned on the a/c, it was slightly colder -- but still not cold enough.   I have a 45 minute commute to and from work, so I've had ample amount of time to test the air conditioning out. I tried several methods -- recycled air, incoming air, flushing the hot air out of the car and then turning it on, etc. Nothing really works. When I'm using incoming air, the air is slightly colder -- but it's more of a "cool" than a "cold." And when I'm using recycled air, it's just flat out warm. I've tried everything during my 45 min commutes. Nothing improves it.   I had a Civic sedan before this and I remember the A/C getting so cold I would have to turn it off. I wish this was the case for my G6, but it never gets cold enough. It's roughly 75 degrees outside; I can't imagine what it's going to be like once it's 90 degrees out.   Are there issues with our G6s that I am unaware of? Replies to this message: busiris (Apr 18, 2008 1:04 pm)
#4 of 4 Re: A/C Issues? [mschianog6] by busiris Apr 18, 2008 (1:04 pm)
Replying to: mschianog6 (Apr 18, 2008 6:16 am) This should be a simple issue to either prove or disprove, and here's how...   On a warm day (70 +F), turn on the A/C and place a thermometer immediately in front of one of the air outlets. Cold air coming out (in the neighborhood of 45 F)?   If no, you have a problem with the compressor, condenser, evaporator or duct work. Take it to the dealer and reproduce the test in front of a service representative.   If yes, the system is operating nominally.   Still, I don't know why they would add Freon to the system unless it was below specs. On a 2008 model, it begs the question....why is it low?   Makes me wonder about the quality of service that your dealer is able/willing to provide...

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