Question about 2003 Buick Century

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Where is the radiator drain plug on 2003 Buick Century?

I'm trying to flush the radiator on a 2003 Buick Century but can't find the drain plug.

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  • abn1271 Mar 09, 2009

    2000 buick century I Cant find my radiator drain plug either

  • Anonymous Mar 18, 2014

    how to flush 1995 buick century coolant system

  • Anonymous Mar 22, 2014

    car id running hot it dosent have a thermostat in it I just had the radiator flushed what could be my problem

  • Anonymous Mar 22, 2014

    Sudden acceleration - happened in a parking lot so no injury but car hit a 2 foot cement retaining wall and is unfixable according to the dealership.

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  • 24 Answers

Just pull out the holes.

Posted on Jan 17, 2009

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SOURCE: where is the radiator drain plug on a 2003 Buick

UNDO THE BOTTOM RADIATOR HOSE AND DRAIN IT OUT.. THEN GET SOME OF THAT BOILING TREATMENT AND LET THAT IDEL FOR 15 OR 20 MIN.. THEN PUT IN NEW COOLENT

Posted on Oct 12, 2009

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Posted on Jan 02, 2017

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1 Answer

98 buick century where is the EVAP VENT SOLENOID CONTROL CIRCUIT


where do I find on the radiator of a buick century 03 the drain plug and how do I flush it properly?

Oct 14, 2013 | 1998 Buick Century

1 Answer

Flush radiator


The easiest way to flush, if radiator is left in the vehicle, is to have the car at normal operating temperature, open the radiator drain, and put a garden hose into the cap opening. Turn it on till as much water enters the radiator as is leaving the drain. Run the engine as you are flushing, and run it till the water runs clean out the drain. Then shut off and refill with a 50-50 mix of water and antifreeze.
If you take the radiator off, you could run the hose into the bottom hose fitting and let it drain out the top hose fitting or the radiator fill neck. A simple back flushing method that may help dislodge and flush out any particles-but the first method should work well enough if your radiator is in good shape and not clogged up with rust and scale.

Apr 29, 2013 | 2003 Buick Century

1 Answer

I can't find the plug to flush my radiator? Where is it?


It is either on the passenger side or driver side, lower corner of the radiator-it has a plastic bolt, and you usually need to remove a lower panel to gain access to it to drain it.

Jun 14, 2011 | 2003 Buick Century

2 Answers

How do i drain the old coolant from radiator. does the drain plug comes out or just turns to one direction. thanks


hi,, yeah you just turn it out, right to tighten, left to slacken, remember to remove your cap and leave a hose of running water flowing through the radiator to help wash out all the old stuff.

PS.. IF cant find the radiator drain plug, remove the button radiator hose..

Apr 03, 2011 | 1998 Buick Century

2 Answers

I have a 1995 buick century. i want to flush radiator, but i couldn't located the draining valve. i need a help, if you can locate the draining valve for radiator.


Hi, if there is not a petcock or plug at the bottom of the radiator, you can just remove the lower radiator hose to drain the coolant. Many cars do not have drain plugs. Please let me know if you have more questions and thanks for using FixYa.

Jan 31, 2011 | 1995 Buick Century

1 Answer

Is there a drain **** on a 1999 buick century radiator and how do i flush the coolant system?


yes there is a small plastic plug on the bottom of the radiator.make sure car is cool.

Nov 27, 2010 | 1999 Buick Century

1 Answer

Where is my radiator drain plug for 2002 buick century


Generally, when one wants to evacuate the system of the radiator fluid, one can remove the bottom hose in order to quickly drain the system, much faster and more minerals comeout that way than if you use the drain plug which is very small.

Aug 26, 2010 | 2003 Buick Century

3 Answers

Where is the radiator drain plug on a 2003 Buick Century? I need to flush radiator.


UNDO THE BOTTOM RADIATOR HOSE AND DRAIN IT OUT.. THEN GET SOME OF THAT BOILING TREATMENT AND LET THAT IDEL FOR 15 OR 20 MIN.. THEN PUT IN NEW COOLENT

Oct 12, 2009 | 2003 Buick Century

2 Answers

Can't find radiator drain valve on 2003 Buick Rendezvous


You will have to jack the car up and get under it to get to the drain valve, it is located on the back side of the radiator tank, drivers side, if not there then opposite side..

Apr 27, 2009 | 2003 Buick Century

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