Question about 1992 Buick LeSabre

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Heater not working in my buick lesabre air blow but its cold air

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This sounds like the blend door actuator. This is a little door in the vent box down under the passenger side dash that opens and closes to change the vent temperature from heat to a/c. It is a little motor that opens the door. It tends to stop working due to the elements that it is in. I hope this helps!!! Thanks!!!

Posted on Oct 06, 2010

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Posted on Jan 02, 2017

bozcro
  • 867 Answers

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

  • 3 Answers

SOURCE: heater blowing cold air Buick Century 2000

does the car not heat up in general? Whats the temp gauge doing and how long of a ride have you tried this for?

Posted on Jan 06, 2009

  • 12 Answers

SOURCE: 1997 buick lesabre HEATER PROBLEMS The fan

This could be several things. First I would check that the thermostat is not stuck open. This will condition will make the car run cold when it is cold outside.

If this is not the case........and I'm assuming you've already checked that the antifreeze is full, make sure that the heater valve is working. If it is frozen in place then it won't move and won't allow the warm water to circulate through the heater core.

I'm basing my answers on a standard Lesabre. Yours may not have the standard climate control.

Posted on Feb 15, 2010

junk9
  • 150 Answers

SOURCE: 1999 Buick Lesabre heater/defrost blowing cold air

You probably have an air bubble and the engine needs to be "burped". I assume you have a 3.8L V6. First take a look in the radiator to make sure it is full. Not just the plastic overflow tank, take the radiator cap off and look. Make sure the engine is cold though. The radiator should be full to the top. The way the system works is that as you drive your car, the water heats up and expands and the check valve in the radiator cap will let the overflow go into the plastic tank when the pressure get over a set amount usually 14-17 lbs. When you shut off your engine, the water will be slowly sucked back into the radiator as the engine cools. If the radiator cap is bad, it may not let the water get sucked back into the radiator and the engine will run hot, you will get air and steam bubbles in the engine, the thermostat will work as long as it has water running by it but if a slug of steam goes by it, it will close. Water will not circulate through the top part of the heater core. "Burping" that engine is a pain but just keep the overflow tank full and check it every time you *start* the car. The air will work itself out. If this does not work it is probably the controls. These are managed by the computer. Try unhooking one of the battery cables and leave it off for at least 20 minutes. When you hook it back up the computers should re-boot. That has solved problems for me with heater, interior lites, power windows, AC, day time running lites, power mirrors, fast idle, rough or slow shifting, CD player, and wipers on GM autos and S-10 PU and Dodge trucks. None of the switches are connected to the device they control anymore. The switch tells the computer to open the window and the computer sends a signal to the window motor. When the computer gets confused strange things will happen or not happen. Things like one headlight stays off etc. I actually had to do it twice on my Bonneville because the first time the AC blower would only work in low and medium. After the second re-boot, everything was fine. Of course you may have to re-set your radio stations.

Posted on Nov 18, 2010

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95 buick lesabre heater problems


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Heater blows cold


To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.------
Engine Overheats and heater blowing cold? http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
---------Heat blows cold on drivers side and hot on passenger side? http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html
-----------
This will help.Thanks.

Feb 15, 2012 | 2003 Buick LeSabre

1 Answer

Heater core is working properly but car will not blow hot air only cold air i am thinking the flapper that controls hot \ cold is stuck in the cold air position


To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.

------
Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

---------
Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

-----------


This will help.Thanks.

Jan 25, 2012 | 2001 Buick LeSabre

2 Answers

What does it mean if your heater is blowing out cold air? Help I'm freezing! 97 buick lesabre


I have a 2000 having the same problem. Repair shops want almost $200 to look at it before determining the actual problem. If the heater box has to be removed, the mechanic said expect a bill of ~$600 or more.
I hope you find a solution that is more reasonable. I will keep monitoring your link.

Dec 20, 2010 | 1997 Buick LeSabre

1 Answer

2000 Buick LeSabre No heat, blows cold air.


check to see if both hoses are hot going to your heater core if they are then core is fine.That would point to your temperature sensor.

Feb 07, 2010 | 2000 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

1997 buick lesabre HEATER PROBLEMS The fan works fine but it doesn;t heat up. Cold air is always blowing out of the vents


This could be several things. First I would check that the thermostat is not stuck open. This will condition will make the car run cold when it is cold outside.

If this is not the case........and I'm assuming you've already checked that the antifreeze is full, make sure that the heater valve is working. If it is frozen in place then it won't move and won't allow the warm water to circulate through the heater core.

I'm basing my answers on a standard Lesabre. Yours may not have the standard climate control.

Oct 13, 2009 | 1997 Buick LeSabre

1 Answer

Heater blowing cold air


replace your hot to cold switch...


Jul 12, 2009 | 2000 Buick LeSabre

1 Answer

Buick LeSabre 2002 My heater does not produce hot air. The fan works but blows only cold air.


just one idea my freinds buick if it gets low on antifreeze it will not blow hot air maybe you can check the antifreeze level

Mar 15, 2009 | 2000 Buick LeSabre

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