Question about 1998 Buick Century

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I recently had a problem with my Buick. I purchased it from an elderly gentelman and he apparently put water in the coolant system. I did not realize it until the car began to over heat. Here is the problem. Before the over heating the temp gauge would not rise above two notches when warmed up. Now that I have gotten a flush and new coolant, the temp of the car is rising to about half way. Is this normal? Or was the average temp before the change normal? P

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Porbably is normal temp. Temps are higher, these days, to assist in low emissions. Needs to be 200 to 230 range, usually. The thermostat does not open until just under 200 or so.

Posted on Sep 03, 2010


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Problem with Cars & Trucks I have a 1996 Buick

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I have to keep putting water in my car

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am guessing you mean overheat. To "heat up" is normal. We want the car to heat up, but to go any higher than about 225 degrees would be to overheat, and that would be bad. If that is what you mean, then there are a number of things that could be causing it. It could be as simple as to high of a concentration of anti-freeze to water mixture(should be a bout 50%), to something as costlty as a blown head gasket. The water pump could have the impellers rusted off and not pumping, the radiator could be stopped up, there could be air trapped i the cooling system, there could be an obstruction to air flow in front of the radiator like leaves trapped in front of it, the cooling fan may not be working, even the thermostat you installed could be defective or installed backwards. It boils down to this: You either have a coolant flow or an air flow problem. (I am including the blown headgasket in the coolant flow catagory) As simple way to narrow it down is when then car is running hot, put your hand on the radiator. If the radiator is hot, then you probably have an air flow problem, see if the fan is working, or there are leaves in front of the radiator. If the radiator is cold, then you have a coolant flow problem, something is keeping coolant from flowwing into the radiator. (water pump, ai in the system, stopped up radiator, etc)
AS you changed the parts this maybe problem with the air flow in the car

May 18, 2008 | 1998 Buick Century

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