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there is a blend door not operating properly the dash will have to be removed to repair most likely Read this article: http://www.imcool.com/articles/aircondition/fix_vacuum_line.htm I'm having the same problem. Jim

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โˆ™ 2008-06-21 14:36:15
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Q: Why would a 94 Buick LeSabre AC blow cold air on the driver side and back vents and blow hot air on the passenger side?
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Cool air flows from drivers side vents and warm air flows from passengers side vents on a 1997 Buick Lesabre?

Make sure refrigerant is fully charged. Does it have dual climate control? Perhaps passenger side sensor is not working properly


How can you fix your air vents to blow out air on a Buick LeSabre 1992?

Under the hood in front of the transmission dip stick is a vacuum line. If it is disconnected or split it will make the air vents not work. If that's not it check your fuses.


Why no heat coming out driver side vents but out passenger side only?

your blend door which cost about $1000-1500


Why do you have no AC in 1995 buick riviera you have new ac control box and passenger side AC works?

== == There are three electronic actuators under the dash: one is for the defroser, one is for the bank of four passenger vents and one ( this is you) sends air to the two driver side vents, the two mid-dash vents and the two rear vents. Either this actuator is faulty, or there's a problem with the electrical delivery system; mainly, the whole climate control panel in your dash (dealer cost: about $700.00).


In a 1997 Buick LeSabre the ac blows out the defroster for the first 5 minutes then comes out the vents it could be a vacuum leak where do you look for it?

I just fixed a similar problem on my 95 LeSabre, got info from this website. http://www.imcool.com/articles/aircondition/fix_vacuum_line.htm


Why is the driver side blowing hot air when the air conditioner is on in your 2004 avalanche?

The Avalanche has dual controls for the air conditioning system. One control operates the driver side ac vents, and the other control operates the passenger side vents.


Why does 2000 Buick Lesabre Custom Air Conditioner blow only through defrost vents?

The vacuum supply line from the engine is disconnected or broken. When the vacuum supply is cut off the system defaults to the defrost mode.


Where is the buzzer for the key and lights in a 1989 Buick Lesabre?

Take off the top dash cover.. There are some screws by the defrost vents, take off the tri piece to find those. And then underneath there will have about five more. Look up where the gear shift is to find these ones. Once you remove the dash cover, you will see a red box on the passenger side.


How do you get the air vent in the back seat to work the front seat works well in a 2005 Buick lesabre?

There is a conduit with a fastener at the end. When I obtained my 2005 Buick LeSabre my rear air vents seemed to blow less than I had expected. After further inspection, I discovered that the conduit was not attached to the vent stack. So I played with it until I got it to slide into the vent stack and it seems to work as I would have expected at present.


Why does air conditioning only blow from the defrost and driver and passenger side vents and nothing from the center dash or floor vents on a 500SL Mercedes?

that is the default mode for the hvac, check vacuum line on passenger side of motor, comes for the strut area over to motor, main vacuum hose for system, mine had come loose


How do you take the radio out of a 1992 Buick Estate Wagon?

I don't directly know about a '92 Estate Wagon, but I have a '95 LeSabre, and you have to start by carefully prying up on the vents with a small screw driver to pop them out. Then take out the screws that you just uncovered. This should allow you to remove the black plastic trim piece that spans the whole dashboard. After that, you can get to the screws holding the radio in and just pull it out and unplug it. But like I said, I have a 95 LeSabre, not a 92 Estate, so it could be different, but I hope this helps a little!


1984 buick air conditioner only blows out the defrost vents?

The 1984 Buick uses vacuum lines to change air flow from defroster to ac vents. Check the entire vacuum system for leaks.


How do you change a CD player in a buick lesabre custom?

To change the CD player you need to disassemble the dash. First remove the 4 vents. There will be screws there. Also remove the woodgrain trim, there's screws there too. remove them and then pull the black dash piece out.


Why do my Cadillac Deville DTS 2002 AC blow warmer air for the driver than the passenger and i did not change the passenger temp and sometimes will blow air only from down and up positions?

i have seen this problem on Buick cars , the air coming out of the left two vents was much warmer than the right vents. turned out that the ac system was low on freon,. It does this because by the time the air gets to the left vents it has warmed. Check the low side pressure on the system. Its probably below 30 psi. Add freon until the low side pressure is about 40 psi, idling. Its an ez fix Please respond and let me know if this cures the problem.


1991 Buick Park Ave and the heat only blows on the front window and out at the feet It will not come out the vents to the driver or passenger the cold air comes out but not the hot air?

Check the vacuum line that comes from the engine is connected to the firewall. Mine had become disconnected and caused some strange operation. All the controls operate on vacuum so hope this helps.


How do you remove factory stereo from 95 Buick lesabre?

first you snap off the wood trim from the dash then you take 3 screws out, one at the bottom left of the trunk release the other at bottom of passenger airbag and the other one is located to the bottom right of the passenger airbag. After that pop out the 4 air vents, inside there is one skrew in each of the vents slot tak those out too. Put the Buick in the lowest gear probbly in first gear for a 95.Then you tilt the sterring wheel down and pull outwards on the dash You will see the factory stereo has some skrews take those out and your done........I suggest you go to wal-mart and but the stock connectors so you wont have to cut any wires. It only cost like 10 bucks.


Why is warm air blowing out of left side vents and cold out of right vents when air con is on in your 2000 grandprix gt?

The climate control is not operating for the passenger side. Check to insure the physical controls work, and the diverter vents are opening to let the cool air to the passenger side.


Why is air coming through the AC vents instead of the defroster vents on a 1995 Buick Skylark?

There may be something blocking the deflectors from sending air up there.


Why would the ac blow cold out of the passenger vents and warm air out of the driver vents on a 97 Grand Prix GT?

This happened to mine every year for 4 years. First few times it was a hose to the compressor, last time it was the actual compressor that had to be replaced...bought it on Ebay for around $300


Selector only stays on defrosted 92 buick?

If the heat selector will not switch from defrost to the dash or foot vents on a 1992 Buick, it is possible that the cable connected to the vent is broken. When the selector is moved from defrost, a cable opens the other selected vents on the heater.


How do you remove the dash air conditioning vents?

prior out with a flat screw driver


2007 Buick Lacrosse with bad smell coming from air vents?

Have the cabin air filter changed.


What is wrong when your '95 Buick Regal heater-defogger vent puts out heat on the driver's side and cold air on the passenger side?

Do the Drivers side and Passenger side have separate "Heat/Cold" controls? If "No" then I'm at a lose to explain this one. If "Yes" then it may be that the controls are malfunctioning. It may be that the control switch/rheostat may be malfunctioning and need to be replaced or that the thermistor (the electronic device used to detect the temperature) on one side or the other is malfunctioning. etc. etc........... TommyTrouble I have a 1995 Buick Regal Custom Sedan, and just today I fixed a similar problem with my heater. Hot air would come out the passenger side vents, and cold air would come out the driver side vents and the rear seat vents under the seats. I found the problem was a connection to the electronically controlled ventilation door was not connected. If this is the case, you may want to check those. The heater core will not heat cold air that is moving at 60 miles per hour, which can cause the cabin to become quite cold. ! -Paul Musgrave


Your 2004 Impala is only cooling on the drivers side only hot air comes out of the passenger vents Any idea what could be wrong you checked and it has plenty of freon?

your driver/ passenger dual zone temperature switch is bad. buy a new one and replace it. $35 at any auto junk yard. easy fix.


Why does my 2001 Grand Prix send AC to the driver side and Heat to the passenger when both climate controls are set to cold?

Could the heater door actuator be bad? What is the cost to replace? This Grand Prix has a dual-zone climate control and when the AC is on, the passenger side vents often change to heat when the control is still on cold.