AC Question
Race Director
Joined: Aug 2010
Posts: 12,641
Likes: 463
From: Houston TX
Mine goes on & off all the time, at what I assume are cycle-intervals. Appears
completely normal. I find I just leave the A/C set to auto, and only adjust the
temperature settings at times. Rarely need to push the "recric" on or off.
completely normal. I find I just leave the A/C set to auto, and only adjust the
temperature settings at times. Rarely need to push the "recric" on or off.
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
That's what mine does, goes on and off when it wants to.I've never pushed the "recirc" button.
Last edited by Vette_DD; May 27, 2012 at 10:42 PM.
Melting Slicks
Joined: Nov 2011
Posts: 2,850
Likes: 38
From: Cleveland (Ohio City) OH
I've never read the owner's manual for this point on the Vette but in other cars it cycles to chill cool air (rather than hot air) to keep the car cooler inside. You don't want to run recirc all the time because it traps the humidity from exhaled air and fogs the windows.
Team Owner
Joined: Aug 2002
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Tech Contributor
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St. Jude Donor '05-'06-'07-'10
It is supposed to work that way when in auto mode.
Sensors
The solar sensor on the vehicle monitors the solar heat and uses the information to maintain the selected temperature when operating in AUTO mode by automatically adjusting the temperature, fan speed and air delivery system. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be activated, as necessary. Do not cover the solar sensor located on the top of
the instrument panel near the windshield or the system will not work properly.
Sensors
The solar sensor on the vehicle monitors the solar heat and uses the information to maintain the selected temperature when operating in AUTO mode by automatically adjusting the temperature, fan speed and air delivery system. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be activated, as necessary. Do not cover the solar sensor located on the top of
the instrument panel near the windshield or the system will not work properly.
Team Owner
Joined: Dec 2002
Posts: 32,074
Likes: 296
From: San Francisco CA
It is supposed to work that way when in auto mode.
Sensors
The solar sensor on the vehicle monitors the solar heat and uses the information to maintain the selected temperature when operating in AUTO mode by automatically adjusting the temperature, fan speed and air delivery system. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be activated, as necessary. Do not cover the solar sensor located on the top of
the instrument panel near the windshield or the system will not work properly.
Sensors
The solar sensor on the vehicle monitors the solar heat and uses the information to maintain the selected temperature when operating in AUTO mode by automatically adjusting the temperature, fan speed and air delivery system. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be activated, as necessary. Do not cover the solar sensor located on the top of
the instrument panel near the windshield or the system will not work properly.
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Race Director
Joined: Aug 2010
Posts: 12,641
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From: Houston TX
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,912
From: Missouri City, TX
It is supposed to work that way when in auto mode.
Sensors
The solar sensor on the vehicle monitors the solar heat and uses the information to maintain the selected temperature when operating in AUTO mode by automatically adjusting the temperature, fan speed and air delivery system. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be activated, as necessary. Do not cover the solar sensor located on the top of
the instrument panel near the windshield or the system will not work properly.
Sensors
The solar sensor on the vehicle monitors the solar heat and uses the information to maintain the selected temperature when operating in AUTO mode by automatically adjusting the temperature, fan speed and air delivery system. The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be activated, as necessary. Do not cover the solar sensor located on the top of
the instrument panel near the windshield or the system will not work properly.
I always keep mine in manual mode. It will start in Recirc mode and then turn off to fresh air mode after cooling off even in Manual mode.
Team Owner
Joined: Sep 2000
Posts: 25,007
Likes: 2,707
From: Far NW 'burbs of Chicago
St. Jude Donor '13
I wish there was some way to calm down my hyperactive A/C system. When I first start the car on a 75' day and the car is 80' inside, the system goes to recirc which it doesn't need (since outside air is cooler anyway) and the fan starts roaring like a jet engine.
Punching the Recirc button to go back to outside air also turns the fan down to something reasonable, but a minor PITA every time.
If only it would just relax and ease into the higher settings over a minute or so.
Punching the Recirc button to go back to outside air also turns the fan down to something reasonable, but a minor PITA every time.
If only it would just relax and ease into the higher settings over a minute or so.
Team Owner
Joined: Dec 2002
Posts: 32,074
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From: San Francisco CA
Safety Car
Joined: Apr 2007
Posts: 4,547
Likes: 609
From: Southeast, WI
Then the fan speed will adjust as well.
All of this is also calculated with the outside temps.
Team Owner
Joined: Jun 2005
Posts: 46,295
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From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
I wish there was some way to calm down my hyperactive A/C system. When I first start the car on a 75' day and the car is 80' inside, the system goes to recirc which it doesn't need (since outside air is cooler anyway) and the fan starts roaring like a jet engine.
Punching the Recirc button to go back to outside air also turns the fan down to something reasonable, but a minor PITA every time.
If only it would just relax and ease into the higher settings over a minute or so.
Punching the Recirc button to go back to outside air also turns the fan down to something reasonable, but a minor PITA every time.
If only it would just relax and ease into the higher settings over a minute or so.
Team Owner
Joined: Sep 2000
Posts: 25,007
Likes: 2,707
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Your answer is correct.
But my system works so well in Auto (better than any other car I've driven) that I prefer to leave it that way. Aside from the Recirc switch, I seldom touch anything.
Life is really tough around here...
But my system works so well in Auto (better than any other car I've driven) that I prefer to leave it that way. Aside from the Recirc switch, I seldom touch anything.
Life is really tough around here...
Drifting
Joined: Sep 2009
Posts: 1,606
Likes: 115
From: Chandler, AZ
the way to modify the a/c and an answer to the OP's question is, do it manually. the reason it goes to recirc on and off is because the "auto" button has been pushed. I use a/c manually, set which side gets it, use on/off for a/c and have to set fan speeds manually, and actual temp desired. I've seldom used recirc simply because either the windows are open, or the top is down. But if the top were up, windows closed, it'd take some good reason to have recirc engaged.
ive never used auto with any of my vehicles, i tend to have the windows open and if im hot enough to run the AC then i want it as cold as possible and will control the fan. Although the AC system and cooling aspects in the corvette is the best in any car ive owned, i rarely have it higher than the lowest fan setting.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Race Director
Joined: Apr 2007
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From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021
sometimes when I start my car after it has been parked for a while it recirculates the air until it cools down a bit and then it takes the fresh air from outside - personally I would like to to permanently recirculate because I have bad allergies (and please don't try to tell me that the pollen filter will block out all allergens)
Team Owner
Joined: Dec 2002
Posts: 32,074
Likes: 296
From: San Francisco CA
sometimes when I start my car after it has been parked for a while it recirculates the air until it cools down a bit and then it takes the fresh air from outside - personally I would like to to permanently recirculate because I have bad allergies (and please don't try to tell me that the pollen filter will block out all allergens)
Race Director
Joined: Apr 2007
Posts: 16,023
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From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021