Question about 1998 Buick Century

2 Answers

Low coolant light, temp normal

My Mom has a 98 Buick Century Limited. She needs to add coolant. She's 82. Does she add coolant via the overflow reservoir or should it be added by removing the pressurized radiater cap (after the car is cool). She lives 50 miles away.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 18 Answers

You should fill the radiator and the reservoir to the cold line.. an yes check for leaks it has to be going down for a reason.

Posted on Jan 26, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 541 Answers

Try adding it via the reservoir. make sure you have a 50/50 mix of water and antifreeze. If you want to cheat, cheat on the side of more antifreeze than water. Look for a leak in the hoses and water pump to find out if she has a larger problem that is causing the loss of coolant. look for drips under the car.

Posted on Jan 26, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My low coolant light comes on my 2001 Buick Century and its filled to proper level.


Go to a dealer service department and buy a new coolant level sensor and install it in your overflow tank. A parts store is unlikely to have one unless all GMs use the same part.

Jun 20, 2011 | 2001 Buick Century

1 Answer

Low coolant light comes on and stays on. Engine runs at normal temp,coolant level is OK and antifreeze mix is 50/50.Wha'ts the problem? Thanks.


The sensor in the coolant tank has gone bad. It's the module mounted on the plastic overflow tank - with two wires running to it. You can purchase a new one at any auto parts store and install it in less than a minute, or you can just disconnect it.

Bill B

Sep 13, 2010 | 2000 Buick Century

1 Answer

Service engine soon light on 1997 Buick century limited


My low coolant light is on but it is not low

Aug 06, 2010 | 1997 Buick Century

1 Answer

Why is my buick century coolant light always on


You may want to check your manual. There is usually a light to tell you the coolant level in your reserve or overflow tank is low, and there is another light to tell you the system is overheating due to not enough coolant in the entire system. Nonetheless if either light remains on and you have refilled the overflow/reserve tank it is time to look for a leak. Leaks can be at hoses, in gaskets, and other locations. A puddle on the floor where the car is usually parked can help you locate a cracked hose or loose clamp, an antifreeze smell in your exhaust can help you locate a much worse problem.Often you may detect an antifreeze smell only after the car is warmed up which can be a leak which is running onto an exhaust pipe.

Jul 21, 2010 | 2000 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

My low coolant light keeps coming on


The thermostat must be failing. Consider replacing it.

Jan 03, 2010 | 2002 Buick Century

1 Answer

My 1997 buick century limited temp. guage kept going up. I added water and it stopped but now when im on the highway the low coolant light comes on. It goes off when i get off the highway. is that my...


I think your buick has a pressure coolant system so you may have air in the system and need too bleed it and for the light coming on while on the highway most likely low coolant when your driving the higher rpm the more coolant is drawn into the motor and triggering the light from coolant reservoir running low on coolant

Nov 10, 2009 | 1997 Buick Century

1 Answer

Radiator Electric Fan Motor on a 2003 Buick Century won't come on when temp gets high


I have a 1997 Buick Century with the same problem. Both my fans work if the A/C is
on as they should. If your turn off the A/C the passanger side fan will not come on
and at an idle the coolant in the radiator will boil, you can hear it in the overflow tank.
If you are driving there is enough air flow thru the radiator that the coolant doesn't
boil and the car doesn't overheat. I have replace the water pump, the thermostat.
and the ETS or engine temperature sensor mounted just above the thermostat in
the thernostat housing, to no avail, I still have the same problem. The only other
thing is the coolant level sensor in the radiator, which I haven't replace yet due
to the fact you have to pull the radiator in order to replace it, which is a major
undertaking. I have a low coolant indicator on all the time on the dash so I have
a pretty good idea the coolanat level sensor is bad. The coolant level is not low
so that sensor is not working as it should. I hope this may help with your problem.
To test you fan raise the hood when it is cold and top off the radiator and fill the
overflow tank to the cold mark. Start the car and let it idle with the A/C off and
see if the drivers side fans comes on. It will have to get to operating temp
before the fan will come on. If it doesn't come on replace the radiator low coolant
sensor on the passanger side of the radiator. If that doesn't fix the problem
replace the thermostat and the Engine Temperature Sensor at the thermostat
housing with an A/C Delco Engine Temperature Sensor. Good Luck..

Sep 26, 2008 | 2001 Buick Century

Not finding what you are looking for?
1998 Buick Century Logo

426 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...