Question about 2000 Pontiac Grand Am GT

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Ac only recirculates won't let out side air in cab 98 q 30 infini

Ac only recirculates won't let out side air in cab of the car

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Are you sure..???.. MAX air recirculates, recirculated a/c usually only works when MAX is selected. the door is behind the glove box, sometimes you can hear the air change pitch. try it on high blower, turn the max on and off (give it a couple seconds) and see if you can tell if it changes.

Posted on Sep 28, 2009

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On a 06 h3, the ac compressor turns on and off when I press the recirculation button.that can't be right is it? And where does the air enter the cab?


the compressor kicks in and out more in re circulation mode because it isnt having to work as hard to cool the air.

Feb 28, 2016 | AC Cars & Trucks

Tip

Toyota Air Conditioners


This tip pertains to maximizing the cooling efficiency from your Toyota's Air Conditioning system.

(The info that follows is for vehicles that are not equipped with "Auto" AC.)

On really warm days, nothing is better than getting in a hot vehicle, and turning on the AC for a nice comfortable driving experience.

In our service facility, we continually see customers who are not totally satisfied with their AC output. Hopefully, this tip will address those issues, and just might be useful to you.

The number one reason for poor cooling with the AC on, is neglecting to select the "Recirculate" function on the heater/AC control panel.

What is Recirculate?
That mode is where the AC system 'recirculates' the air contained in the car, thru the AC box, over and over, until the desired temperature is reached. The Recirculate button, knob, lever or slide is easily identified by seeing a picture of a little car, with an arrow doing a 'U-Turn" inside the car. This is the opposite of the "Fresh" mode, which is an arrow going 'straight through' the little car icon.

If you are using the "Fresh" mode, you are actually admitting ambient air into the car. Ambient air is much warmer, and makes the AC work harder, and you will see a 10 degree rise in the air temperature from the dash vents. Also, some vehicles admit the 'Fresh' air from under the hood, so, leaving the 'Fresh' mode selected could actually draw in the much hotter underhood air into the AC system.

So, what to do? Anytime you use the AC, please verify that the Recirculate function has been selected. As stated above, this uses the air in the car over and over, and your cooling efficiency will be 10 degrees colder. You can easily check and verify this with an 'instant-read' thermometer. Put the thermometer in the center dash vent, start up the car, turn on the AC, select Recirculate, and watch the temperature drop. It should stop dropping around 34-36 degrees F (depending on humidity, sun load, and a few other things). Now, when the temperature is as low as it will reach, turn off the Recirculate device. You will see the temperature actually rise, maybe 10-12 degrees.

Some additional info: As long as the car is in Recirculate mode, the AC compressor will eventually turn off, when the interior makes the selected temperature. This saves you gas. If you run the AC with the fresh mode selected, the AC compressor runs all of the time. This wastes gas, and costs you more money.

The best way I can easily sum up Fresh versus Recirculate is this:

Running the car with 'Fresh' selected is like running your refrigerator with the door open. It works, but it does not work good. Choosing 'Recirculate' is like running the fridge with the door closed.
If this tip helps you, please leave a positive helpful rating. Thanks!

on Jul 17, 2010 | Toyota Corolla Cars & Trucks

Tip

Climate control settings,on all vehicles


When using the ac on a hot summer day,or a mild spring day,the compressor runs all the time.If you set it to low,and turn the temp to cold or toward the warmer side,lets say cool,then the ac compressor runs also,it just cycles,on,and off.No matter what setting you are using on your ac control,the ac compressor stays on,using fuel.Get the most out of your ac,while it uses your fuel,to keep you comfortable.All vehicles have a MAX setting,or a recirculate setting.Always use this setting.I say,always use this setting,not only that,but use this setting.I stress this because you are pulling in air ,from the out side,that is warming the evaporator,and making the ac work harder to give you comfort.In the hot ,hot summer,the settings MAX,and recirculate,keep the air that is in the vehicle,in the vehicle.It recirculates the air,instead of bringing hot air inside the vehicle ,and bringing the temp,up,to a warmer temp.A lot of people don`t even know that this is on the control,or don`t know what it is for.Some times the recirculate button,or dial,will have a picture that looks like a C,but squared off at the corners.So folks,get more out of your vehicles cooling and heat system.Yes ,this will work on heat also,maybe not defrost,but on some cars,it will work.

on Dec 08, 2009 | Chevrolet 1500 Cars & Trucks

1 Answer

My 2006 Ram 2500 Diesel cab heater blows cold are out the driver's side vents and hot air out the passenger side. I can't get the cab warm in the winter unless I place the heater in recircula


CHECK all the vent hoses, are they connected, no ob strucctions, when the last time you replaced the cabin air filter ? do you have one? look @ your owners manual, also, you may need to have several heater controls, or other control on as well, see owners manual, anything fall into the defroster vents ? replace thermostat @ engine. see how this works for you, good luck

Jan 28, 2013 | Dodge Cars & Trucks

1 Answer

I have a cold air leak on the passenger side of my 2004 GMC Sierra 1500. Where is the air coming from and how do I stop it?


Some of these pickups would develop an air leak between the air inlet section of the HVAC box and the cowl or firewall area. This leak would allow cold air to seep into the cab [usually by the passengers feet] in the winter and hot air in the summer. The other rarer cause I've seen is the recirculation door actuator motor sometimes won't hold the recirculation door closed which can also cause a leak. Sorry but I don't have a procedure to fix either of these for you as the ones I saw were still under warranty and went back to the dealers. Hope this helps narrow it down and good luck!

Dec 20, 2010 | 2004 GMC Sierra 1500 Crew Cab

1 Answer

2006 Dodge Ram Mega Cab 1500 4x4 needs AC Improvment Can I upgrade the AC Compressor to get better preformance


Compressor change should have no effect, presuming it is working correctly. Have a qualified shop diagnose the system, there are tons of items involved, pressures, tempratures, heating system, etc. Remember that you are heating OUTSIDE air unless you are using recirculation setting...Hard to lower outside air to cool during the short time that the air is in the evaporator coils.

Sep 09, 2010 | 2007 Dodge Ram 2500 Mega Cab Laramie

2 Answers

When i press the ac button it blinks three times but does not turn on. 2007 Tahoe LT


If your vehicle is equipped with automatic climate control, this should help.

Recirculation Operation
The HVAC control module controls the air intake through the recirculation actuator. The recirculation switch closes the recirculation door in order to circulate the air within the vehicle. The outside air switch opens the recirculation door in order to route outside air into the vehicle. Regardless of the blower motor switch position, recirculation is available only in the panel and bi-level mode switch positions. Including the OFF position. The mode switch must be placed in either the panel or bi-level position before the blower motor switch is placed in the OFF position. In order to reduce windshield fogging, outside air is circulated when the mode switch is in the defrost or defog positions. If the recirculation switch is pressed into the ON position when the mode switch is in an unavailable mode position, then the recirculation switch LED will flash 3 times. If the HVAC control module detects a fault with the recirc door the HVAC control module will try to drive the actuator for a predetermined amount of time, to outside air, which is the defaulted position for the recirculation actuator

Oct 17, 2009 | 2007 Chevrolet Tahoe

1 Answer

I have a 2005 chevy silverado 4X4 Duramax. My air conditioner recirculate button light comes on but the ac doesnt recirculate. I pulled the coer under the windshield looking for leaves, everything looked...


There is an actuator for the recirculation door. It is probably bad. The actuator is at the firewall and is very hard to get off for replacement. The dash cover has to come off, then the defroster ducts. Then with a long extension, 5.5mm socket, a universal and a lot of luck, you get the actuator off without removing other dash parts.

A small arm is helpful.

Aug 20, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

1 Answer

When I accelorate my ac vent goes from center


Check the white vacuum hose going to your recirculation door outside under the hood. It is located on the passenger side firewall . The hose becomed brittle and falls apart. I get small vacuum hose and cut into the wiring harness to locate a good section of hose.Put hose to vacuum motor. Good luck.

Aug 09, 2009 | 1995 Ford F150 Styleside Regular Cab

1 Answer

2004 Chevy Silverdo Crew Cab


if your ac is on max i believe it recirculates the air in the car by sucking air in by the defrost vents and blows it back out of the normal vents try to move the controls to make sure the that the shutters are working and make sure the ac is not on max by selecting the knob that has an arrow going through the little car instead of the circular one that might fix the problem

Jun 29, 2009 | 2004 Chevrolet TrailBlazer

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