- #4 of 13
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Re: 2007 G35 Sedan A/C Problem [imkramer]
by jjflores424
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Oct 30, 2007 (8:24 pm)
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Replying to: imkramer (Oct 30, 2007 7:06 pm)
Sounds like a similar problem. My dealer was insisting that I had my temperature set too high and was switching to fresh air to keep the temperature constant. He finally had his tech take it on a long ride with the ac set to max cool at 60 degrees, and after about 15 minutes of driving it kept switching to fresh air. You can push the recirculate button and less than 5 minutes later it switches back to fresh air. This is problamatic in a city situation with no smog laws, fumes are constantly coming in. I did some research and saw a TSB at one time stating something about a sensor for the aircon and if it was bad it could be sensing the wrong outside temp thus screwing up the interior AC functions. I can't seem to find the tech service bulletin for this again though, anyone know about that one?
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- #5 of 13
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Re: 2007 G35 Sedan A/C Problem [jjflores424]
by gooddeal2
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Oct 31, 2007 (4:01 am)
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Replying to: jjflores424 (Oct 30, 2007 8:24 pm)
He finally had his tech take it on a long ride with the ac set to max cool at 60 degrees, and after about 15 minutes of driving it kept switching to fresh air. You can push the recirculate button and less than 5 minutes later it switches back to fresh air.
What was the outside temperature? I think if the outside temperature is about the same as in your car, this A/C might just change to fresh air so it doesn't need to run the a/c?
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- #6 of 13
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Re: 2007 G35 Sedan A/C Problem [gooddeal2]
by imkramer
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Oct 31, 2007 (5:36 am)
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Replying to: gooddeal2 (Oct 31, 2007 4:01 am)
The temperatures here in Atlanta, GA were in the 90's+ all summer.
However, it's not a matter of that. To clarify, it's not that the AC is turning off - it's that the system is choosing vent instead of recirc while in AC mode. The AC never switches off by itself.
An additional problem that I should mention is that there is no way to run just the fan (AC off) in recirc mode. The system won't allow it. With just the fan on, as soon as I hit recirc, the AC is turned on. There are plenty of times when I'd like to do this (when humidity is not an issue) but it won't allow it. In all other cars I've owned (even ones with "Auto Temp Control"), many of them Nissan's, I've always been able to do this. 
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- #7 of 13
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Re: 2007 G35 Sedan A/C Problem [imkramer]
by scottm123
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Oct 31, 2007 (5:54 am)
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Replying to: imkramer (Oct 31, 2007 5:36 am)
I mostly keep mine on recirc, at least during the summer months, and I have never had it switch to freash air.
I use fresh air without the A/C during the cooler months just to get fresh air in but still use the recirc button if behind some smoke dumping car or something.
It stays where I put it, unless I play with the mode button.
(floor, defrost, vent, etc.)
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- #8 of 13
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Re: 04 G35 AC problem [johnnyt1]
by serfer1
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Oct 31, 2007 (10:10 am)
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Replying to: johnnyt1 (Mar 08, 2007 9:56 pm)
The G35 has has an AUTO mode for intake air (See pg 4-25 or your manual - '08 version for me). To go to manual push the button you prefer. To go back to AUTO mode, hold the button for 2 secs.
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- #9 of 13
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Re: 04 G35 AC problem [serfer1]
by jjflores424
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Nov 01, 2007 (5:05 am)
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Replying to: serfer1 (Oct 31, 2007 10:10 am)
The outside temperature for me is always around 85-90 degrees, I live on an island in the pacific.
It's just that the ac won't stay on recirculation, it will randomly switch back to fresh air, mostly at the worst times such as behind a bus with diesel fumes.
Mine is an 03, it never did this for the first two years but since 05 it's been constant. Any infiniti loaner they give me doesn't do it.
I didn't know about setting the mode by holding the button, but I did try that before as I thought it might be similar to programming a button on the radio. So I held the recirc button down for a while and later in my drive it started switching to fresh air again.
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- #10 of 13
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Re: 04 G35 AC problem [johnnyt1]
by jimpier1
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Jun 22, 2008 (10:39 am)
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Replying to: johnnyt1 (Mar 08, 2007 9:56 pm)
I have had the same problem and brought it to my dealer's attention a while ago. They plead ignorance and tell me it's a normal thing that when it's on recirc and ice builds up on the evaporator pan it switches to vent to melt the ice. I don't believe a word of that since it was fine for the first 2 years. Also I am having a problem where the AC won't blow cold when it's very hot out, but will blow cold when it's normally hot outside. Again the dealer things I'm nuts but it didnt use to be that way, so I know better then they do. Personally, I think the dealer is the problem...
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- #11 of 13
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Re: 2007 G35 Sedan A/C Problem [scottm123]
by bengong
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Nov 19, 2008 (10:14 am)
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Replying to: scottm123 (Oct 31, 2007 5:54 am)
Hi scottm123, could you tell us how to keep the fresh air without the A/C to get fresh air in?
Thanks for your help.
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- #12 of 13
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Re: 2007 G35 Sedan A/C Problem [bengong]
by johninnj
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Nov 19, 2008 (6:44 pm)
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Replying to: bengong (Nov 19, 2008 10:14 am)
I may be mistaken....but fresh air can run either way...it's the recirc that kicks on the AC..always...it is a terrible design flaw that I hate. Reminds me of a mid-90's american car actually. If anyone figures out how to override that and the ridiculous touch screen lock-outs on the nav/control screen...I'm all ears ! !
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- #13 of 13
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Re: 2007 G35 Sedan A/C Problem [imkramer]
by jpp5862
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Nov 23, 2008 (5:14 pm)
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Replying to: imkramer (Oct 31, 2007 5:36 am)
I have the same issue with my 2003 Maxima. I want to upgrade to a G35, so I've been reading these forums. Interestingly enough, I have the manual A/C controls, and anytime I switch it to recirc (behind a bus, stuck in traffic, etc.), the A/C comes on. The light under the A/C button doesn't come on, but I can hear the compressor kick in and the air coming out of the vents cools immediately as if I had turned on the A/C. Not sure if this is a problem with my climate control system or if it's a bad design idea by Nissan, but it's annoying.
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