Question about 2003 Buick Century

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My 2003 Buick Century is overheating. The water pump is good, and I have replaced the thermostat. The cooling fan is not coming on. Where is the sensor located?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Papa Chan
  • 56 Answers

SOURCE: 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.

Posted on Jan 04, 2009

GM Elec
  • 1000 Answers

SOURCE: high/low sensor switch location for 1999 Buick Century

Ros.....The heater motor is located under the dash on the right hand side (passanger side). You will have to remove the close out panel to access. The resistor you are looking for will be to the lower left of the fan motor at about the 7:00 position. Illustration is below.
let me know.
regards,
0900c15280217dd1.gif

Posted on Feb 10, 2009

66 chrgr
  • 1011 Answers

SOURCE: coolant temp sensor

BELOW THE THERMOSTAT HOUSING ON DRIVERS SIDE OF ENGINE

Posted on Apr 16, 2009

  • 3 Answers

SOURCE: 1999 buick century 3.0 v6 engine cooling fan not turning on soon enough allowing the engine to run hot. Is this a sensor control problem that is an easy replacement?

u need to buy the special coolant to your car i have the same car whit the same problem and is cause to the incorrent cooland the cooland to your car is the  DEX-COOL  if u dont find that u need some hit       (silicate-free) 

Posted on Apr 29, 2009

  • 1619 Answers

SOURCE: Pontiac Montana overheating

How do you know the thermostat is ok? If in doubt replace it. Water pumps are a even bigger what if. Did he do a radiator flush? Cooling system flush of the engine? Cooling fans come on at what temp and go off when? Replace the engine temperature sensor? 6 years old is bound to have sensors and such go bad.

Posted on Jun 16, 2009

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1 Answer

Why is my 1999 Buick Century overheating?


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Where is 2003 buick century sensor located


Before you did any repairs to address your overheating problem, did you check to see if your fans were working at all ? One way to check if they are working is by starting your vehicle and turning the A/C on, they should automatically start running. If they do not, begin to perform diagnosis to that electric circuit.

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Ok. guys. i am losing coolant. it is not showing up in the oil and i have no external leaks. i did replace the head gasket and all associated gaskets about two months ago. also have changed the upper and...


If the coolant is leaking at the head gasket or the intake manifold gasket slowly, then new gaskets will have to be installed. The bubbles coming up is a bad sign that the seal of the coolant system is bad or it's overheating the coolant to the point that it boils over.

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Did you put a 50/50 concentration of coolant to water into the cooling system?

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Good luck on this repair.

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My 98 buick century overheats i bought a brand new thermostat water pump and radiator and its still overheating any solutions?


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.

Oct 23, 2009 | 1998 Buick Century

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Engine Overheats If replacing the Head Gasket does the thermostat have to be removed duting this repair?


If you are going to the expense of replacing the head gasket, it would be false economy not to also replace the thermostat at the same time.
Particularly if you are attempting to solve a overheating problem.

Sep 03, 2009 | 1999 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

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