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2002 Chevy Venture overheats with water in it and oil overfills

Tiny
JEFFREY44883
  • MEMBER
  • 2002 CHEVROLET VENTURE
  • 147,000 MILES
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
Friday, February 24th, 2012 AT 10:17 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Are you saying the coolant goes low and the oil overfills? Are you sure they are not mixing?
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Friday, February 24th, 2012 AT 10:28 PM
Tiny
JEFFREY44883
  • MEMBER
  • 5 POSTS
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.
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Friday, February 24th, 2012 AT 10:36 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
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.
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Friday, February 24th, 2012 AT 10:42 PM
Tiny
JEFFREY44883
  • MEMBER
  • 5 POSTS
Thank You
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Friday, February 24th, 2012 AT 10:47 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Glad to help. Check the trans fluid too. It is cooled through the radiator. If there is a leak, that could be mixing too.
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Friday, February 24th, 2012 AT 10:57 PM

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