2000 Saturn SL Logo
Posted on Aug 20, 2011
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I have a 2000 saturn sl1, and i seem to be putting coolant in my car at least 2 times a week. It also overheats and when it does, it comes out of the top of the part that hold the coolant. Could this be my water pump, thermostat, or simply a leak in the coolant holder

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  • Posted on Aug 20, 2011
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If it is coming out of the top of the radiator, you are getting back pressure. First, make sure there are not puddles under the engine where the water pump is at. If so, you will need to replace the water pump and gasket; as well as the thermostat. It sounds as though the thermostat is stuck closed - replace it (if no leaks from water pump) and see if this fixes the issue.
Also, start the car (radiator full) and let run to operating temperature. Feel the top radiator hose - if it is not hot, but the engine is, then the thermostat IS stuck closed. Be sure to ask for a thermostat housing gasket when purchasing the thermostat, as they do not always come together.
Please let me know if you need further assistance.
carsandcomps

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