Lots of air passing thru a/c vents with a/c off - Maintenance and Repair Forum

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Lots of air passing thru a/c vents with a/c off
Monday, May 30, 2005 10:24 PM
My 05 is very new, and when the A/C is turned off a large amount of air passes through the vents. It's summer time and this is warm air coming through so it's forcing me to use the a/c with the windows down and its kinda annoying. Is this right?? my 99 cav didn't seem to do this (its a good amount of air riding through)


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Re: Lots of air passing thru a/c vents with a/c of
Monday, May 30, 2005 10:43 PM
you have to turn the position slector to recirc , if its on the regualr 1's youll get more air through







Re: Lots of air passing thru a/c vents with a/c off
Tuesday, May 31, 2005 6:29 AM
Derek724 wrote:My 05 is very new, and when the A/C is turned off a large amount of air passes through the vents. It's summer time and this is warm air coming through so it's forcing me to use the a/c with the windows down and its kinda annoying. Is this right?? my 99 cav didn't seem to do this (its a good amount of air riding through)


I posted that same question to when I got my 04 Cavalier, the dealer said it was normal.

Just turn the knob to reciculate, fartherest to the left it will go.




- 2004 Cavalier - 124k, owned since new



Re: Lots of air passing thru a/c vents with a/c of
Tuesday, May 31, 2005 9:04 AM
Same thing happens in the winter, when you turn the heater off cold air will seep through the vents... Just turn your vents away or keep the air on
Re: Lots of air passing thru a/c vents with a/c of
Tuesday, May 31, 2005 9:08 AM
cool thanks guys. I will just have to turn the vents away or something. I know my 99 wasn't like this so they changed something.


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Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 01, 2005 5:47 AM
actually maybe your 99 wasnt but mine is



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Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 01, 2005 9:09 AM
My 04 'fire does that also. It's so you get fresh air into the cabin. The idea being if the windows are rolled up (and sun roof closed) you can use up all the oxygen inside the car and fall assleep while driving.

my 01 cavy did that as well, but the air came out of the floor vents instead of the dash vents. it was kinda annoying... depending on the season, my shoe eather got really hot or cold

as said, if you set the HVAC to recerc it'll kill most of the flow, but your still going to have some air coming out of the vents, just no where near as noticable.





Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 01, 2005 1:35 PM
^^^^same, having the sunroof open creates a vacuum in the car and pulls the air in faster.
DeadBob wrote:My 04 'fire does that also. It's so you get fresh air into the cabin. The idea being if the windows are rolled up (and sun roof closed) you can use up all the oxygen inside the car and fall assleep while driving.

not true. you can close the windows and sunroof but you arent going to cut off all the air if the vents didnt let air in. there are other ways for oxygen to get in.



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Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 22, 2005 10:19 AM
Unless you have your car sealed up as tight as an airlock, you're gonna get major air seeping in... Now, if you have a nice-sized hole in your exhaust system underneath (or near) the cabin, theoreticaly, you can pull enuf CO into the interior to make you fall asleep... I can't say I know of that happening to anyone I know, however.








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Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 22, 2005 11:58 AM
mine comes through the floor vents... freezes my feet during the winter lol



Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 22, 2005 12:23 PM
This is a common problem with ALL GM vehicles. Every one that I've ever owned or rode in has had the same problem. No idea why.





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Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 22, 2005 12:54 PM
all cars have air that flow through them , its normal

some cars its more noticable than others , but they all do it










Re: Lots of air passing thru a/c vents with a/c of
Wednesday, June 22, 2005 8:48 PM
Since the post is back at the top I'll say this: Setting it at the re-circulate eliminates practically all of it. I think it was worse when it was brand new. Also, my 99 definitely came in the floor vents, I remember my foot changing temps. I also remember that with the air off in my 99 that whatever temperature I had it set at would affect the incoming air, weird! haven't checked that out on the 05


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