2002 Chevy Venture overheats with water in it and oil overfills

2002 CHEVROLET VENTURE
147,000 MILES
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JEFFREY44883
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put water in it when it was cold outside and it overheated and shut off but oil fills up and water goes out but oil has same color. just had oil change and thats when it overheated i think thermastat is original
Feb 24, 2012 at 10:17 PM
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JACOBANDNICKOLAS
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Are you saying the coolant goes low and the oil overfills? Are you sure they are not mixing?
Feb 24, 2012 at 10:28 PM
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JEFFREY44883
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Im not sure but i did put seafoam in it and radiator cap has cream color on it and oil was real thick off white color after that I ran out of money and put strait water in it when it was freezing temp. Now van looses fluid runs hot and oil was coming out front of motor.
Feb 24, 2012 at 10:36 PM
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JACOBANDNICKOLAS
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If you used water when it was freezing, chances are something cracked such as a head, engine block... Also, you could have a freeze plug leaking. However, based on what you see coming from the radiator cap sounds like the oil and coolant are mixing which indicates ahead gasket or a cracked component.
Feb 24, 2012 at 10:42 PM
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JEFFREY44883
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Thank You
Feb 24, 2012 at 10:47 PM
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JACOBANDNICKOLAS
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Glad to help. Check the trans fluid too. It is cooled through the radiator. If there is a leak, that could be mixing too.
Feb 24, 2012 at 10:57 PM