Question about 1998 Buick Century

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

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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.

Posted on Mar 22, 2011

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What do you do when your vehicle has overheated and antifreeze is all over the road... where do i start?


A mechanic would look for the leak, by filling up the cooling system and using a pump to pressure test it.

Sep 01, 2013 | 1998 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

The engine keeps on overheating


one problem many answers. low antifreeze(leak) cooling fans are not coming on when they are supposed to bad fans or bad fan relay possible bad temp sensor. or it could just be a bad thermostat

May 04, 2010 | 1999 Buick Century

2 Answers

1997 Buick Century Overheating


Have someone pressure test the cooling system - you likely have a head gasket leak

Apr 10, 2010 | 1997 Buick Century

3 Answers

My 1998 buick century is leaking coolant from the engine where the water pump is mounted.


it could be a loos hose clip or the water pump, there is a gasket behind the water pump this could be leaking as well there is a quick fix you could try if its a clip or gasket leaking it should stop the leak,but it wont stop a water pump leaking ,,,,,,,,,,,
get some "rad seal" and tip it into the rad,,,not the header tank it go's right into the rad then top it up with water and run up the engine itll its hot after a short time the leak should stop,,fords put it in all there new cars and vans that come out there fatctorise,, so if its good for them to use it,, it must work?

Mar 09, 2010 | 1998 Buick Century

2 Answers

Is the 'low coolant' light a danger?


It is only a danger if you run critically low as you run the risk of overheating your engine which can cause you a myriad of problems.

Take a couple minutes and stop by an anuto parts store, pick up a gallon and add it with water to the coolant reservoir.

I always say better safe than sorry.

Kee p an eye on the reservoir. If it starts to go down, you've got a coolant leak you should take care of.

Jan 23, 2010 | 1998 Buick Century

2 Answers

I have a 1998 Buick Lesabre that keeps losing antifreeze.


Buick 3.8's are notorious for intake manifold leaks. If you are sure you are not leaking externally (look under the alternator and on the top of the transmission), it could be an intake manifold leak. I've replaced mine...I didn't think it was too hard a job for an amateur.
It could also be a head gasket, but the intake leaks are much more common.

Nov 05, 2009 | 1989 Buick LeSabre

1 Answer

Leaking antifreeze buick century 1998


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

May 23, 2009 | 1998 Buick LeSabre

1 Answer

'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..

Mar 11, 2009 | 1996 Buick Century

2 Answers

Low coolant light, temp normal


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.

Jan 26, 2009 | 1998 Buick Century

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