Question about 1997 Pontiac Sunfire

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I have a pontiac sunfire(1999). All of a sudden the coolant leaked out and the car over-heated. When I looked at it a hose which is attached up by the coolant cap was not attached to anything (not sure if that is the way it is suppose to be). The hose to the engine and the rad are secure. I opened the cap and nearly all the coolant is gone. Should I buy more coolant and fill it up? Why would this do this?

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  • Anonymous Dec 17, 2008

    i have the same problem almost but i cant find where its leaking

  • terrieoke Jan 06, 2009

    low coolant light alerts me Im out of coolant again. the car overheated and had to fil the radiator with water and made it home but the coolant leaks out almost as soon as I put it in. The low coolant light goes out but I do't trust it anymore. The car also leaks oil and spells slightly burnt when I exit the car. It runs great otherwise.



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Try removing the plastic cover that sits between the radiator and the nose section of the car to check your radiator it may have a crack in it on the top. Atleast thats the problem I had with my 97 sunfire

Posted on Jan 16, 2009


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A thermostat that does not open and close would cause these very symptoms. Since it does not allow coolant to flow through the system, it will make the engine overheat. Since it won't allow the "heated" coolant to pass by your fan, the heat will continually blow cold air.
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