Question about 2003 Buick Century

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Heater is blowing cold air

2003 buick century
heater is blowing cold air

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Check the coolant level on your radiator

Posted on Feb 03, 2009

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1 Answer

1999 Buick Century blows out cold air only no matter what temperature is set at


Theres a manual flap that seperates air from outside,an air from heater near floor under dash.....if stuck will do this.....also if thermostat is old an wont close ,tempature cannot build.....if it has a thermostat,if missing.......wont heat up

Oct 21, 2016 | 1999 Buick Century

1 Answer

The ac vent blows out hot air on the drivers side ,and the passenger side vent blows out cold air what could cause this problem on my 2001 buick century


its probably the actuator. its usually located under the dash in the center. you might be able to get to it by removing the glove box and looking to the drivers side. its a black box that has a wire connector on it. switch your heater control from hot to cold and you should here it click. replace it and i bet your problem is solved

Apr 10, 2013 | 2001 Buick Century

1 Answer

I have a 1998 Buick Century and recently my temp gauge was spiking close to the red. It never actually overheated and after pulling the vehicle over for a few minutes the thermostat opened up draining my...


when the thermostat opened where did the coolant drain to? not understanding. did you put the thermostat in upside down blocking the cool will cause heater to blow cold air. if not, could be radiator itself.

Nov 16, 2012 | 1998 Buick Century

1 Answer

Hater isnt working, it blows air but its cold air.


check your thermostat that could cause you not to get no hot air flow

Oct 09, 2009 | 1998 Buick Century

1 Answer

03 Buick Century DUal Climate problem


the problem is a part called the air temperature control blend door acuator motor, it is deep inside the dash and the dash must be removed to replace it.

Jul 09, 2009 | 2003 Buick Century

2 Answers

Used 1998 Buick Century, missing -both- heater/ac door actuators


you can remove radio to get to them.disable air bags when working around dash.

Apr 24, 2009 | 1998 Buick Century

1 Answer

Heater on 2003 Buick Century only works when the rpms are up


Your likely problem is low coolant level. Check to make certain that your coolant level is topped up in the radiator and that coolant is also in the reservoir at the appropraite level as shown when on container when the engine is hot or cold. When the coolant is low, you have to have higher RPMs to get the coolant to pump through the system and heater core.

Mar 24, 2009 | 2003 Buick Century

1 Answer

I just need to know where is the thermostat located on a 2003 bui


Fllow top radiator hose from radiator to engine, where hose clamps on engine is called a goose neck thermostat is under that, it will be held on with 2 bolts. are you sure you got all the air out of system when you chg. water pump? If you don't bleed all air out of system it will not blow hot, because of an air pocket in cooling system.

Mar 09, 2009 | 1999 Buick Century

1 Answer

Heater blows cold air


is it wet on the pass side floor ??? your heater core is out.. hard to replace...

Jan 19, 2009 | 2003 Buick Century

1 Answer

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?

Jan 04, 2009 | 2000 Buick Century

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