Question about 2003 Buick Century

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How to repair radiator leak on a buick 2003 century

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 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

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ramonvelasqu
  • 24 Answers

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

just pull out the holes.

Posted on Jan 17, 2009

  • 840 Answers

SOURCE: How to change the rear lights on a 2003 Buick Century.

yes you will you will have to take side trims and sill panel off get a 10 mm ready and take the bolts out the tail liaghts should come out the license lamps have screws in them and if you looka t them but you should be able to twist bulbs and pull them out / Please rate my response thank you very much

Posted on Jan 30, 2009

  • 176 Answers

SOURCE: need unlock code for 2003 buick century car radio

You will need to take the car to a dealership to have the service department unlock the radio for you. They have a special code to unlock the radio and then you are required to change the code to one that you will remember. An appointment should not be needed because this takes about 5 minutes. I do not remember the code, sorry.

Posted on May 18, 2009

  • 17 Answers

SOURCE: 2 po442 codes showing up on my 2003 buick century

If there was a leak at the gas cap. EG: Left off or loose after fill up? You will need to have the codes cleared or it will clear itself after enough key cycles. EG: Started and shut back off as many as 20 to 50 or more times.

Posted on Jun 01, 2009

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1 Answer

How can I repair a bad leak from the radiator? It leaks very badly on the drivers side.


If the radiator is cracked, replace it. Radiators run at high pressure, high temperature. Any repairs would be temporary.

Feb 22, 2016 | 2001 Buick Century

1 Answer

Aluminum radiator plastic end cap


Check out this site it might be of help to you.
Plastic Radiator Repair

Mar 24, 2014 | 2001 Buick Century

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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.

Jun 19, 2017 | 2003 Buick Century

1 Answer

Car losing antifreeze water, no visable leaks, car overheating. 1998 buick century, v6


if you have no visible leaks and it is overheating then it sounds like you have a head gasket leak internally.the coolant is going some where .get the cooling system pressure tested to make sure you don`t have a leak externally.if the coolant is not leaking out the radiator then this indicates the thermostat is not stuck.what ever the problem is change the thermostat at the time of repair.

Mar 22, 2011 | 1998 Buick Century

1 Answer

My `95 Buick Century V-6 overheating. I found the problem to be a leaking freeze plug on the front head, behind the water pump. How can I get at this plug to replace it?


There are many radiator leak stop products that will seal the leak without having to replace the freeze plug. It is the poor mans repair.

Aug 22, 2010 | 1995 Buick Century

2 Answers

2003 Buick Century is over heating in the morning only. Radiator, thermostat and sensor have all been replaced. Water pump and fans have been checked. When it idles it gets hot but when you rev the motor...


Sounds like the intake gasket or even possibly the head gasket have gone south if everything else has been replaced. Internal engine leaks will cause engine to overheat very easily.

May 19, 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

1 Answer

Heater is blowing cold air


check the coolant level on your radiator

Feb 03, 2009 | 2003 Buick Century

1 Answer

Radiator leaks


If it has no cracks then you could replace the cap. if not have it repaired.

Dec 24, 2008 | 1996 Buick Century

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