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2001 buick century radiator fan

Not working

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Radiator Electric Fan Motor on a 2003 Buick Century won't come on when temp gets high

I have a 1997 Buick Century with the same problem. Both my fans work if the A/C is
on as they should. If your turn off the A/C the passanger side fan will not come on
and at an idle the coolant in the radiator will boil, you can hear it in the overflow tank.
If you are driving there is enough air flow thru the radiator that the coolant doesn't
boil and the car doesn't overheat. I have replace the water pump, the thermostat.
and the ETS or engine temperature sensor mounted just above the thermostat in
the thernostat housing, to no avail, I still have the same problem. The only other
thing is the coolant level sensor in the radiator, which I haven't replace yet due
to the fact you have to pull the radiator in order to replace it, which is a major
undertaking. I have a low coolant indicator on all the time on the dash so I have
a pretty good idea the coolanat level sensor is bad. The coolant level is not low
so that sensor is not working as it should. I hope this may help with your problem.
To test you fan raise the hood when it is cold and top off the radiator and fill the
overflow tank to the cold mark. Start the car and let it idle with the A/C off and
see if the drivers side fans comes on. It will have to get to operating temp
before the fan will come on. If it doesn't come on replace the radiator low coolant
sensor on the passanger side of the radiator. If that doesn't fix the problem
replace the thermostat and the Engine Temperature Sensor at the thermostat
housing with an A/C Delco Engine Temperature Sensor. Good Luck..

Posted on Nov 11, 2008

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dgjtex
  • 405 Answers

SOURCE: Heater/AC Fan does not work in our 1998 Buick Century

Fan will be under dash on passengers side , Removing glove box might be needed, Gm also uses a blower resister ro control fan speeds. First check your fuse and then check and make sure your getting 12 volts to the terminal at the blower, You could have a blown fuse, a bad switch, or a bad resister , if your getting voltage to blower motor then most likely it will be the motor. These are not to difficult to change. I hope this helps, please be aware I can only guess at what the problem is from my past experience.

Posted on Dec 18, 2008

  • 196 Answers

SOURCE: Radiator Plug Location

It should be on the right lower side of the radiator when looking at the engine .

Posted on Jan 08, 2009

ramonvelasqu
  • 24 Answers

SOURCE: Where is the radiator drain plug on 2003 Buick Century?

just pull out the holes.

Posted on Jan 17, 2009

ghost45
  • 1280 Answers

SOURCE: Where is the radiator cooling fan switch sensor?

BOTH!... when you find out WHY the fan is not operating, let us know... OK?

Posted on Sep 10, 2009

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1 Answer

Changed thermostat water pump and radiator on my 2001 Buick Century but still keep running hot...what else could be the problem???HELP PLEASE


Check to see if the radiator fan is on when the AC is on. The new thermostat may have a higher operating temperature than the old one. The thermostat could have been installed upside down. The gauge is defective and reading the wrong temperature.

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My radiator cooling fans on my 1999 Buick Century will not come on. I have checked the fans and they are good, just getting no power. I have replaced the coolant temp sensor to no avail.


Have you checked to see if a fuse has been blown that operate the fan? Check your fuse box and book for the info concerning your radiator fan or any fan operation. That's a good start.

Aug 31, 2014 | 1999 Buick Century

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put a wire direct to fan from battery to make sure its not working as some times relays go and the fan wont kick in if it doesent work when connected to battery motor in fan is goosed hope this helps ivan

Oct 10, 2012 | 1992 Buick Century

1 Answer

2001 Buick century eniger get hot. But know water in oil


Overheating - - faulty cooling fan, fan relay, thermostat, water pump, low coolant level in radiator.

Jun 27, 2012 | 2001 Buick Century

2 Answers

Fans dont work in 2003 buick century


It could be the fan relay , usually located under the hood , or the
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either could be the problem. good-day !

Nov 16, 2011 | 2003 Buick Century

1 Answer

Remove radiator overflow bottle on 2001 Buick


Often times the bottle is anchored from underneath in the wheel well.

Sep 22, 2009 | 2001 Buick Century

2 Answers

1998 buick century over heats when stopped at intersections. Fluids are ok and fans are on.


Have your radiator flow tested...this time of year, many "marginal" radiators begin to show those symptoms.

Jun 27, 2009 | 1998 Buick Century

2 Answers

Radiator Plug Location


It should be on the right lower side of the radiator when looking at the engine .

Jan 08, 2009 | 2001 Buick Century

1 Answer

Radiator Electric Fan Motor on a 2003 Buick Century won't come on when temp gets high


I have a 1997 Buick Century with the same problem. Both my fans work if the A/C is
on as they should. If your turn off the A/C the passanger side fan will not come on
and at an idle the coolant in the radiator will boil, you can hear it in the overflow tank.
If you are driving there is enough air flow thru the radiator that the coolant doesn't
boil and the car doesn't overheat. I have replace the water pump, the thermostat.
and the ETS or engine temperature sensor mounted just above the thermostat in
the thernostat housing, to no avail, I still have the same problem. The only other
thing is the coolant level sensor in the radiator, which I haven't replace yet due
to the fact you have to pull the radiator in order to replace it, which is a major
undertaking. I have a low coolant indicator on all the time on the dash so I have
a pretty good idea the coolanat level sensor is bad. The coolant level is not low
so that sensor is not working as it should. I hope this may help with your problem.
To test you fan raise the hood when it is cold and top off the radiator and fill the
overflow tank to the cold mark. Start the car and let it idle with the A/C off and
see if the drivers side fans comes on. It will have to get to operating temp
before the fan will come on. If it doesn't come on replace the radiator low coolant
sensor on the passanger side of the radiator. If that doesn't fix the problem
replace the thermostat and the Engine Temperature Sensor at the thermostat
housing with an A/C Delco Engine Temperature Sensor. Good Luck..

Sep 26, 2008 | 2001 Buick Century

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