Question about 2002 Buick Century

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My 2002 buick century overheats and has no heat

The temperature gauge goes almost to the red and it blows cold air. I have replaced the thermostat, the water pump and I have fjushed out the radiator, but I still have no heat?

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  • Buick Master
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You may have an air lock in the cooling system that is causing the over heating problems . disconnect the hose that is the highest from the radiator and start the engine and wait until full water flows out . (Open the heater core to allow water to flow through it)connect the hose and refill the radiator The thermostat should have been installed with the body facing into the head/ block water.

Posted on Jan 02, 2014

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  • Buick Master
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Possible trapped in system. Bleed system, should have two small screw bleeders, one in front of left valve cover on pipe behind water pump and the other on coolant pipe outlet as you follow upper rad. hose towards engine. Engine cool, remove rad cap, open both bleed screws and fill rad until coolant flows free out both bleed ports. close both bleed screws, rad cap off, start engine and let idle until upper hose is hot to touch , shut off, let it cool down for 20 minutes, top up rad and install cap. restart car ,drive and check.

Posted on Jan 02, 2014

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Posted on Jan 02, 2017

  • 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

  • 9 Answers

SOURCE: 1994 Century Buick Heating problem

It sound like you have a block or plug up heater.If you just used a garden hose that is not a flush .A reel flush is called a power flush it used about 150lb. of air&water mix. Find a Radiator shop to do this. as far as your temp. going up and down you may have an air trap in eng,an radiator run car for 20min without the cap on. I have been doing Radiator work over 34 years

Posted on Jun 22, 2009

wireguy212
  • 1627 Answers

SOURCE: my 98 buick century overheats i bought a brand new

You should take it to a rad shop and get the whole cooling system cleaned and flushed,then pressure tested to eliminate it before goig any furter because an y other cause of overheating is going to cost you a bundle.

Posted on Oct 23, 2009

  • 369 Answers

SOURCE: 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.

Posted on Feb 07, 2010

elshaddai159
  • 1016 Answers

SOURCE: No heat coming out of the blowers on 2003 Buick

Hi,
This is a problem with the heat exchange valve which will need to be replaced, this switches the hot water flow on and off. Thanks
Jason

Posted on Apr 13, 2011

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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

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These details will help.
Thanks.

Nov 22, 2012 | 1997 Ford Taurus

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

I have a 2004 Dodge Stratus, the car could be cold and the temp reads right in the middle and the fan is on. When I drive it, the temp gauge goes to hot and the temp light goes on. Radiator is full,...


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http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
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http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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For car running hot and overheating issues, I suggest to you go through this help links. Click this link below and go through the troubleshooting procedure to take care of the problems: ----

temp gauge goes erratic? http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

--------

Temperature gauge keeps fluctuating up and down close to red? http://technoanswers.blogspot.com/2012/01/temperature-gauge-keeps-fluctuating-up.html

--------

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Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?

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

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This details will help.Thanks.

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1 Answer

I have a 2002 Buick Century and my heater will blow air but only heats air occasionally.


If you know where the heater hoses are, lift the hood after car has warmed up I mean the engine running for at least five minutes, feel the heater hoses, if they are warm or hot and still no heat from the heater, you have an in line proiblem. if hoses remain cold, replace the thermostat with a winter thermostat.

Nov 10, 2011 | 2002 Buick Century

3 Answers

Over heat


Take it in for diagnosis.. .seems to me you don't know anything about vehicle maintenance... perhaps you need to replace the thermostat and flush the cooling system... not a bad idea.

May 26, 2009 | 2002 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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