Question about 2000 Buick Century

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2000 buick century, where is the thermostat located. and what level should the antifreeze be? the temp guage on dash is staying on the c side what may be the problem?

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The thermostat is in a housing on the engine. It's located where the lower radiator hose attaches to the engine. The coolant level should be right near the top of the radiator when you remove the cap, and the overflow canister should be filled to the indicated line (there are markings on the canister). If your gauge stays on cold, you may have a faulty coolant temperature sensor. If it will get to normal operating temperature while sitting still, but starts cooling down when you drive, you have a thermostat failure - it's stuck open, and will need replacement.

Posted on Dec 11, 2009

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1 Answer

Location of the engine diagram for a 2000 Buick Century. The engine has overheated when the coolant reservoir has water still in it.

On a cold engine, remove radiator cap, where applicable, is there coolant in the radiator? Usually the reservoir has cold and hot coolant levels marked on it. If it got too hot that reservoir would fill up in a hurry. When it got hot, what was the temp reading in degrees F? When it got hot, was the radiator fan running?
If your thinking thermostat, the engine side of upper radiator hose, should go to thermostat housing. Have to remove thermostat housing to get at thermostat.
Any applicable trouble codes? Some of the national brand auto stores will check po codes for free or use an obd2 code reader to check codes, yourself. There could be other issues, coolant temp sensor, gasket problem--if combustion gases in the coolant.

Jul 05, 2017 | Buick Cars & Trucks

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Where is temp cotrol door located on 2000 buick century

before chasing doors inside the heater box a low freon charge will cause the problem your looking to repair

Jun 05, 2012 | 2000 Buick Century

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Engine temp dial goes almost to the red and then goes down, but still no heat. century 2000

check your coolant levels and look under the car for leaks, if none it sounds like you need to replace the thermostat

Sep 15, 2011 | 2000 Buick Century

1 Answer

I have a 1919 buick century. The heater doesn't put out any heat ? The fan works. The AC works. Is this a thermostat problem ? If it is, where's the thermostat located ?

I would look at your temp control switch on the dash, sounds like it is not switching the blend doors, also do you have a temp gauge in your car for engine temp, if it is reading normal you should not need a thermostat.

Oct 22, 2010 | 1991 Buick Century

1 Answer

Low coolant light comes on and stays on. Engine runs at normal temp,coolant level is OK and antifreeze mix is 50/50.Wha'ts the problem? Thanks.

The sensor in the coolant tank has gone bad. It's the module mounted on the plastic overflow tank - with two wires running to it. You can purchase a new one at any auto parts store and install it in less than a minute, or you can just disconnect it.

Bill B

Sep 13, 2010 | 2000 Buick Century

1 Answer

Why is my buick century coolant light always on

You may want to check your manual. There is usually a light to tell you the coolant level in your reserve or overflow tank is low, and there is another light to tell you the system is overheating due to not enough coolant in the entire system. Nonetheless if either light remains on and you have refilled the overflow/reserve tank it is time to look for a leak. Leaks can be at hoses, in gaskets, and other locations. A puddle on the floor where the car is usually parked can help you locate a cracked hose or loose clamp, an antifreeze smell in your exhaust can help you locate a much worse problem.Often you may detect an antifreeze smell only after the car is warmed up which can be a leak which is running onto an exhaust pipe.

Jul 21, 2010 | 2000 Buick Century

1 Answer

Passenger side floor board is wet.

Hi Big,

Heater core is on the passenger side under the dash.

Are your coolant levels low?

Start your engine and set the heater on high. This allows circulation through the core. Now check for leaks. Place a paper towel or two on the floor. This will allow you to see the color of whatever is leaking. (e.g. antifreeze)

Fogging will only occur when there is a temperature differential of more than one or two degrees between the inside and outside of the vehicle.

Best regards,

Aug 17, 2009 | 2000 Buick Century

1 Answer

How to replace a coolant level sensor, 2000 buick century

The coolant level sensor is located on the radiator. If you are looking at the engine from the front of the car it will be on the left side. There will some kind of clip holding it in the radiator. Removed the clip and pull the sensor out. You will lose coolant so try to swap it out quick or drain some of the coolant out. Once new sensor is installed, install clip to keep the sensor in place and reconnect the wires to the sensor. Crank the engine and make sure the coolant level is full. This should correct your problem.

Dec 20, 2008 | 2000 Buick Century

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