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No it should not run constantly. One of the switches used to turn the fan on is broken, or stuck in the open/closed position. First thing, I would unplug the high side sensor on your AC system. That sensor goes the most because it comes into contact with refrigerant. It doesn't matter if you are using the AC (say if its winter), but if the switch is broken, it may think the pressure in the AC system is to high, there fore it will turn the cooling fan on to drop the temperature.
I wouldn't worry about wiring problems like opens in the circuit (broken wires), because then the fan wouldn't run at all.
If unplugging (maybe even jumping) the AC high side pressure switch, try other sensors that control fan operation such as, coolant temperature.
Good luck! __________________________________________________________________ I 100% agree with everything the first poster wrote. But if your on A budget. You can make A decision on what you want to do. That is not the design of the car, but, it will not hurt it at all. I definitely would not spend the money to get if stopped. ,,,,,,,,,,,,,,,,,,,,, If it stops running get it fixed. The fan motor will not burn up because it is running. but, It could already be worn and go out, Just make sure it keeps running and if it stops get the car fixed.
What else can I help you with?
Will a header panel from a 1991 Buick Century fit on a 1990 Buick Century?
yea it should
Cooling fan sensor on a 1985 buick century?
Check at the rear side of the radiator towards the top
What is the coolant capacity of a 2001 Buick Century with 3.1 liter engine?
The 2001 Buick Century came equipped with the 3100 V6 (engine code 'J'). The cooling system capacity is 11.6 quarts.
Water cooling system 2001 buick century where is thermostat located?
Checkhttp://autorepair.about.com/library/faqs/bl113g.htm
Why won't the cooling fans work on a 1998 Buick Century?
check fan relay/fan relay control module
What type of freon in cooling system on a Buick Century?
1993 and before it is R-12, 1994 and later its R-134a
Buick century tire pressure?
You should run between 30 and 35 PSI in the tires on your Buick Century. If you have older tires on the vehicle, you should run closer to the 30 PSI mark.
What does the coolant temp sensor do on a 1987 buick 2.8?
Should start the auxilliary cooling fan
Where is fuel gauge located on 1995 buick century?
you should not be driving
I have had my water pump replaced on my 1999 Buick Century. Why would it be making a bubbling noise and leaking coolant?
You need to have a cooling system pressure test to determine as to where it is leaking now. Repair the leak and it should be okay.
When was Buick Century created?
Buick Century was created in 1936.
Where is the cooling fan sensor on 2000 Buick century?
The cooling fan sensor on a 2000 Buick Century is typically located near the engine's cooling fan or in the engine compartment, often mounted on or near the radiator. It can be found connected to the radiator or the engine's coolant temperature sensor circuit. If you're having trouble locating it, consulting the vehicle's service manual or wiring diagram can provide more specific guidance.
