Question about 2000 Buick LeSabre

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I got no heat on mu 2000Lesabre. The heating core works fine, the vent is working. What could casue this? Thank you in advance for your help.

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Thermostat on dashboard the one from blue to red needs to be replaced

Posted on Sep 09, 2010

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How come i dont get no heat?


The heater core may be plugged with rust. Good way to test it is with the engine warmed up put the controls in heat mode and then go under the hood and locate both water hoses going t the heater core. Hold on to both hoses to see if the temperature of both hoses are the same. If not, no water is getting into the core. . If the temp is the same, then control vacuum is not working. There is a check valve in the line to the control head that prevents vacuum fluctuations from moving the blend door when accelerating. Check it.

Sep 25, 2016 | 2001 Chevrolet S-10

1 Answer

Heat does not work in 96 gs300 . when u turn heat on cold air comes out


the heater core may have gone bad or is cloged. if you can find the return line of the core pull off the hose and see if any thing comes out

Dec 19, 2013 | 1996 Lexus ES 300

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Chrysler sebring no heat


If the heater core lines are hot but the core isn't, the problem may be a clogged core.

Dec 18, 2013 | Cars & Trucks

1 Answer

No in car heating,blowers working fine but it wont produce heat. Its a 51 plate grand cherokee Thanks


If it won't produce heat then you have an issue with your heater core. The heater core could be bypassed, in which case no hot coolant will get to it to produce heat inside the cabin. The heater core could be stopped up with dirt/debris, in which case the heater core can't radiate heat to produce heat in the cabin. The ducting in the dash could not be allowing the hot air to flow to the vents - therefore no heat in the cabin. I'd start with the heater core and check to see if it is bypassed. This generally happens on older vehicles because the parts can be harder to find.

Nov 01, 2011 | 2001 Jeep Grand Cherokee

1 Answer

Passenger side heat doesn't work in my 2007 Dodge Grand Caravan. There is no heat, only cold air, coming from the dash, floor, & defrost vents. There are dual temp controls for the driver &...


I really can't be sure off hand, but what you wrote looks like the control valves are sticking(these flaps allow air to go different directions at the vents). its located at the heater core(towards the left side of the heater core) under the plastic just under the dash. you can manually move them, encase they are stuck, they do stick sometimes. while checking the vent doors, make sure your vacuum lines are connected. also check to make sure your vent hoses are tight. I hope this helps

Jan 11, 2011 | 2007 Dodge Grand Caravan SXT Minivan

1 Answer

Heater not working


What does that mean? It blows air but not hot air? It doesn't blow air at all with A/C or heat? I assume you mean it blows, just not hot. If so, make sure your car is running at operating temp. If the car isn't warming up, your thermostat is stuck open and the coolant can't heat up enough to transfer heat from the heater core to the air you're blowing out the vents. If your car warms up to operating temp just fine, you may have a heater core issue. Your core may be clogged with corrosion thus not allowing heat transfer as well. If the valve on the inlet hose to your heater core is bad it won't allow hot coolant into the heater core, once again no heat to the air blowing out your vents. One of these is most likely your issue. I hope this helps.

Feb 03, 2010 | 1995 Ford Escort

1 Answer

Inside heat does not get hot enough


could be the temp blend motor not working. does the heat go from hot to cold or is the temp always the same?

Feb 01, 2009 | 2002 Mercury Mountaineer

1 Answer

Heat does work all the time


Make sure the radiator is full. If so have someone back flush the heater core for you. After this it gets complicated......

Nov 22, 2008 | 2005 Ford Taurus

1 Answer

Smoke or steam coming from vents, not overheating, codes read 12 and 43.


I think it probably is the heater core leaking.As the water eats up to boiling point small cracks will allow steam to escape. Probably smells like coolant.

Oct 09, 2008 | 1995 Dodge Caravan

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