Question about 2000 Buick Century

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How to change antifreeze in 2000 buick century. i need to know how to drain old fluid.

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Take the bottom hose off from the radiator

Posted on Dec 31, 2010

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There is usually a drain on the bottom of the radiator called a petcock, turn counterclockwise. be sure to flush out the radiator with clean water and ensure you get all the rust and sludge out, they sell radiator flush kits at any parts store

Posted on Jan 01, 2011

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1 Answer

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I'm trying to perform a radiator drain (flush) on my 1999 Buick Century Limited. I need to know how.


drain raditor fluid then take off upper and lower hoses and put your house water hose in lower raditor hose and turn on water and let run for about 5 mins. to flush out raditor.
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2 Answers

I have a 2002 buick century custom. Apparently there is a problem with the antifreeze that was used in these vehicles. What do I need to do to repair the damage caused by this problem


You need to drain the old antifreeze and flush the entire cooling system with a commercial product such as Prestone Super Flush. After flushing according to the directions on the product you will want to fill the cooling sysstem with plain water and let it circulate through the system. Drain the system again and repeat the process until the water is clear of any antifreeze. Refill the system with the proper mixture of antifreeze. Make sure you use a quality antifreeze that is compatible with your make and model of car. The auto parts store personnel can help you select the right antifreeze. DO NOT refill it with Dexcool. That is the antifreeze that GM put in originally that is causing the problems. Dexcool not only forms a gummy sludge in the cooling system, it also attacks certain gasket materials and causes coolant to leak into the engine. Hopefully, this hasn't happened yet.

Dec 18, 2010 | 2002 Buick Century

2 Answers

Where is drain plug on radiator so i can flush the radiator.


If you want to flush the raditor remove the big hoses, don't worry with the drain plug as you can't flush it good enough with the drain open anyway. If your just changing the fluild you can drain it and fill it but thats not flushing it. remove the therostate too and flush the engine and remove the heater hoses and flush them too. As you may not know what kind of antifreeze is in the motor now you need to get all of it out as some kinds of antifreeze don't mix and make a clogging slime instaed of good coolant. Do it right or take it to a shop that will.

Sep 30, 2010 | 2000 Buick Century

1 Answer

Changing out thermostat


you need to drain some antifreeze out,remove the upper radiator hose from engine,remove thermostat housing there held down by two bolts.

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Leaking antifreeze buick century 1998


Check your heater hoses. It sounds like your leak is a hose.

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'97 Buick Century Overheating Problem


Yes Ma'am, Have a pressure check done on the coolant system and I'll be willing to bet you have a blown lower intake gasket.. Pls let me know..

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Draining of the rack and power steering


the best way is with a automotive suction gun (about $6), drain the reservoir and then refill until the fluid is clear, but from past years of many such noise concerns coming through the shop u will end up replacing the power steering pump.

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