Question about Buick LeSabre

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2003 buick lesabre limited heater blows cool air even when at operating temp

Vehicle has climate control

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This may also have been caused by mixing regular anti-freeze with dex cool, which causes the coolant to become like pudding and clogging the heater core. They are NOT compatible. It may need to be professionally flushed with the proper chemicals. If one hose is hot and the other is colder, the core is most likely plugged. Going through this on one now.

Posted on Oct 30, 2012

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6ya6ya
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Posted on Jan 02, 2017

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bozcro
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SOURCE: 2000 Buick LeSabre heater only blows cold

the climate control thermostat is not opening the valve to let the warm coolant in

Posted on Nov 29, 2009

  • 373 Answers

SOURCE: A/C BLOWER WILL NOT TURN

HI...
The problem on your vehicle is .
THE BLOWER MOTOR RESISTOR..
when they come damaged the blower motor not work. or don't stop working.
just REPLACE the RESISTOR. and you will fix that problem.
I'm a mechanic for a few years. and have autorepair software
On my PC.

OK... I hope with this information you will fix the problem.

Thank's for use fixya.

Posted on Jul 25, 2008

SOURCE: E46 Climate control blows hot air regardless of temp setting

your water controll valve located at the right side of the engine near the extreme rear end of the inlet manifold may not be working properly hence the hot air .

Posted on May 10, 2009

  • 70 Answers

SOURCE: 1997 Bonneville SSE, when the heater is turned on, only cold air

you may have a failed blend air door motor/actuator. this part will regulate the amount of air from the heater core depending on the temp setting on your electronic climate control unit. if it has failed, it will be stuck at the temp that it was last set at when it quit working. it is also possible the heater core may be plugged up, but using the gm recommended dexcool coolant and flushing it out every 5 years, it should not be plugged up. you can pull the 2 heater hoses off the heater core on the passenger side of the engine compartment firewall and see if the heater core is the problem. caution-do not use a high pressure air hose to blow through the heater core as this could damage it and cause a leak!

Posted on Oct 28, 2009

  • 1 Answer

SOURCE: 99 Buick Regal LS dual climate control. No heat passenger side.

the motor for the passenger side
blend door is shot

Posted on Jan 12, 2010

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Blows cold air turn heat on


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Jan 28, 2016 | 2005 Hyundai Tucson

2 Answers

2003 Mazda MPV heater blows heat, then blows normal temp air, then heats and so on. Trying to find what is the problem. The unit is blowing air all the time but the temperature changes within seconds.


Have you checked your antifreeze level? When the vehicle is cool check the level and top it off if its low. Read your manual if you're not sure where to look.

Dec 19, 2012 | 2000 Mazda MPV

1 Answer

My 97 buick lesabre limited heater/ac blower quit, it has the climate control,I checked all fuses.


REMOVE HEATER BLOWER MOTOR HOT WIRE BLOWER MOTOR IT.IF IT WORKS.YOUR AC AND HEATER CONTROL SWITCH IS FAULTY.CHECK HVAC FUSES AND CHECK BLOWER MOTOR RELAY.IF BLOWER MOTOR DONT WORK WHEN HOT WIRE REPLACE IT.IF ALL CHECK OUT GOOD.HAVE DEALERSHIP DO A DIAGNOSTIC TEST ON YOUR CLIMATE CONTROL SYSTEM.

Dec 02, 2010 | 1997 Buick LeSabre

1 Answer

I have a 95 Buick LeSabre Limited that will not stop blowing heat. Only when I turn the car off does it stop but when I turn it back on within 1 minute it is blowing Heat at full force. It has climate...


make sure you dont have a vacuum line off under the hood, going into the firewall, or to a control valve that shuts off the hot water to the heater

Oct 28, 2010 | 1995 Buick LeSabre

1 Answer

I have a 2002 Buick LeSabre Limited & with the heater in Auto mode, there is very warm air discharging at the floor on the passenger side, but cool air discharging on the driver side. This is the case...


Well you have 2 or 3 door actuators.They are little electric motors in your HVAC system that flip doors open and close and change air direction(defrost to midlevel to floor)and how mutch air flows across the heater core, if any at all.The issue is that the drivers side is not working.The question is why.Could be the little motors,or the heater control unit.You may also have a HVAC programmer.You can see what the parts look like by going to rockauto.com. and looking up your aplication,look under (heater blend door,heater AC control) I see that there are a lot of parts all tied to the heater control.I will just say that I had the same issue on a 2004 Chevy 2500HD with duel climate controls.Duel sliders to adjust temp.Do not know which you have,but dealer said that the actuater were at faul and wanted a lot to replace them.I ended up just replacing the heater control and that fixed the problem. I found mine for under $100.I don't think you will be able to find anything cheep on yours.Well good luck and I hope I have shed some light on this,and hope others can steer you in the rite direction.

Dec 28, 2009 | 2002 Buick LeSabre

2 Answers

2000 Buick LeSabre heater only blows cold


the climate control thermostat is not opening the valve to let the warm coolant in

Nov 29, 2009 | 2000 Buick LeSabre

1 Answer

Climate control does not blow cool air. When I turn the temp down there is no change in air temp. It blows full hot air. Sometimes I can give the dash a smack with my hand and it will blow cool air, but...


you going to have to tear the dash apart (ac control panel) to see why your switch is not working. The control valve unit works on vacum systems and you need to find out where is leaking or the hoses is old and broke off. If your ac compessor still working and blowing cold air but does not adjust the temperature, it will be in the control valve. Is very easy to fix if you locate the leaks or a bad valves. hope that help some.

May 14, 2009 | 1991 Buick LeSabre

1 Answer

2002 Buick LeSabre Limited. Airconditioner cools


The dual air on this car has two temp control motors that are electronic. You need to have the car scaned at a dealer to see if it has a code for the left temp feed back circuit. If so you will need to replace the temp control motor for that side.Good Luck

Apr 30, 2009 | 2002 Buick LeSabre

2 Answers

Max air button does not respond


"MAX" ONLY puts the climate control in the RECIRC mode. Door modes change to " RECIRCULATE" interior cabin air back to be RE-COOLED, instead of using HOT OUTSIDE air to cool. If the problem is in the panel, complete replacement is required. Hope this helps

Apr 22, 2009 | 1992 Buick LeSabre

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