Cooling system service instructions please?

Tiny
ANSELMOGARCIA
  • MEMBER
  • 2004 BUICK CENTURY
I need to do a coolant flush on the car, it keeps overheating.
Sunday, February 21st, 2010 AT 8:35 AM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,772 POSTS
Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

This video shows the job being done on a similar car but the process is the same.

https://youtu.be/5ayVixLqS4E

Please let us know if you need anything else to get the problem fixed.
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Wednesday, March 3rd, 2010 AT 1:15 PM
Tiny
TIMZONE157
  • MEMBER
  • 1 POST
  • 2003 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 165,000 MILES
How do I drain my radiator to put fresh anti freeze in.
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Wednesday, May 26th, 2021 AT 12:21 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 44,198 POSTS
Hello,

The drain plug is on the lower left tank of the radiator here is a guide and a diagram (below) to help you see what to do.

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

I prefer to pull off the lower radiator hose. Drains a lot faster. To drain the block you should remove the block plugs on them if possible. If not just ad water and run it through the system. And re-drain and refill with proper coolant.

Check out the diagrams (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Wednesday, May 26th, 2021 AT 12:21 PM (Merged)
Tiny
IGGYSBUICK
  • MEMBER
  • 2 POSTS
  • 2000 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 20,000 MILES
Could you please tell me where the radiator drain is located on my 2000 century. Thanks so much
iggy
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Wednesday, May 26th, 2021 AT 12:21 PM (Merged)
Tiny
IMPALASS
  • MECHANIC
  • 3,112 POSTS
Hello

It should be located at the lower drivers side of the radiator.


https://www.2carpros.com/forum/automotive_pictures/248015_84980747_1.gif



Hope this helps
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Wednesday, May 26th, 2021 AT 12:21 PM (Merged)
Tiny
D FURMAN
  • MEMBER
  • 1 POST
  • 2001 BUICK CENTURY
Where is the drain for the Radiator. Or does it have one?
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Wednesday, May 26th, 2021 AT 12:21 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,772 POSTS
It should be on the lower driver's side. It will look like a wing nut. If there isn't one, you may have to remove the lower radiator hose to drain the system.
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Wednesday, May 26th, 2021 AT 12:21 PM (Merged)

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