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Chevrolet Malibu Maxx Climate Control/AC/Heat

43 messages,  Last post on Feb 01, 2009 at 5:52 AM

You are in the Chevrolet Malibu Maxx Forum. Your Host is pf_flyer

What is this discussion about? Chevrolet Malibu Maxx, Heating / Cooling, Hatchback


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#4 of 43
a/c recirculate by maxxind
Jun 19, 2006 (4:55 pm)
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I agree that in most situations recirculate makes the a/c work better. An exception might be when you first start up the car and the interior is super-heated from sitting in the sun. I think in that situation fresh air is better than inside air. Recirculate probably saves gas, too.
 
But what's the relationship between plastics in the car interior and a/c performance?
#5 of 43
Re: a/c recirculate [maxxind] by maxxliberty
Jun 19, 2006 (6:23 pm)
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Replying to: maxxind (Jun 19, 2006 4:55 pm)

Recent GM cars all seem to have marginal AC - which the GM AC engineers surely are aware of. My guess is that they are using compressors that take less hp to operate so as to increase fuel mileage. I'd prefer better cooling over minor MPG increases.
#6 of 43
Re: a/c recirculate [maxxliberty] by meandmymaxx
Jun 22, 2006 (6:30 am)
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Replying to: maxxliberty (Jun 19, 2006 6:23 pm)

I think it also has to do with the new environmentally safer coolant they use,R134A is not nearly as efficient at removing the heat as the old R12 use to be. I had the windows tinted on my 05 Maxx.(first time on any of my cars) To me makes a big differance in how hot the car gets and how quickly it cools down.
#7 of 43
Keeping the Maxx by maxxind
Jun 19, 2006 (1:52 pm)
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I'm new to this forum but I've had my '05 Maxx for about 15 months and 31,000 miles. I second the opinion Buffalonickel: The Maxx compares very favorably to many other makes of cars, both imported and domestic. In the miles I've driven (about 80 percent highway and 20 percent city) I've averaged close to 30 mpg overall, and have had nothing at all go wrong with the car. I've changed the oil myself when the oil life monitor has called for it (using Mobil 1) and had the tires rotated once.
 
The power is impressive. I think the Maxx SS is a cool car, but honestly I don't need any more power than the regular one has. It passes effortlessly on two lane roads.
 
One interesting thing I've noticed that maybe some other owners might be able to shed some light on: About a month after I got my Maxx a friend saw it, liked it, and got one too. His is also an '05, but what's interesting is he gets a little better mileage than I do, but his car does not feel quite as powerful as mine. I wonder if they have the computers programmed differently on some of them, because it just feels like mine runs a little richer than his.
 
I have no intention of having mine re-programmed or anything like that, because I believe, "If it ain't broke, don't break it," and to me the compromise between economy and power on my Maxx is perfect.
 
One other question for other Maxx owners: Do you find that in hot weather (90+) you just about have to run the a/c in recirculate mode to get the car cool enough? This is what I find. Also, it seems that the a/c system automatically throttles itself back when the headlights come on. Does anyone else notice this? I figure maybe it's an energy saving feature to limit a/c compressor operation when it's dark out and less cooling is needed.
#8 of 43
Re: Keeping the Maxx [maxxind] by maxx4me
Jun 19, 2006 (3:22 pm)
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Replying to: maxxind (Jun 19, 2006 1:52 pm)

I haven't noticed the light/AC relationship issue. However, every car's AC needs to be run on recirculate (inside air) to keep the air cool due to all the plastics in cars. To draw hot humid air in from the outside will ensure that it will take at least twice as long to cool the interior.
#9 of 43
Re: Keeping the Maxx [maxxind] by beedublu
Jun 19, 2006 (5:32 pm)
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Replying to: maxxind (Jun 19, 2006 1:52 pm)

One other question for other Maxx owners: Do you find that in hot weather (90+) you just about have to run the a/c in recirculate mode to get the car cool enough? This is what I find. Also, it seems that the a/c system automatically throttles itself back when the headlights come on. Does anyone else notice this? I figure maybe it's an energy saving feature to limit a/c compressor operation when it's dark out and less cooling is needed.
 
I find that anytime the outside temp is much greater than 80F it helps to use recir mode. That's especially true in direct sun. My 04 hasn't had the headlight related problem you've described.
 
Actually, my one complaint with the a/c in this car is the design of the panel vents. They don't allow much vertical adjustment, so you either have to endure cold air blowing directly at your shoulder or just direct it far to either side. And that weird pair of registers on the upper part of the panel doesn't do much good...most of the air comes from the lower center vents and the two outboard ones.
#10 of 43
Re: Keeping the Maxx [beedublu] by madmaxx
Jun 19, 2006 (6:00 pm)
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Replying to: beedublu (Jun 19, 2006 5:32 pm)

"..weird pair of registers on the upper part of the panel doesn't do much good.."
 
Those are ment to supply warm or cool air to the rear seat passengers.
#11 of 43
Re: Keeping the Maxx [madmaxx] by beedublu
Jun 21, 2006 (6:38 am)
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Replying to: madmaxx (Jun 19, 2006 6:00 pm)

Those are ment to supply warm or cool air to the rear seat passengers.
 
I don't see how, given that there's absolutely zero air coming out of them...no matter how you position the thumbwheel control that supposedly controls the airflow!
#12 of 43
Re: Keeping the Maxx [beedublu] by madmaxx
Jun 21, 2006 (6:42 am)
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Replying to: beedublu (Jun 21, 2006 6:38 am)

The vents for the rear passenger area work best when using the fan, and if you also close or partially close the vents for the front passenger area.
#13 of 43
a/c by maxxind
Jun 19, 2006 (6:02 pm)
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Replying to: madmaxx (Nov 13, 2002 6:41 pm)

Thanks - that's interesting info.
 
I think the upper center vents are supposed to "turbo blast" air to the back seat, and the only time they really work is when you close the lower center vent with the rotary thumbwheel control. Rear passengers have said that they can definitely feel air from those upper center vents if I close the lower center vent.

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