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Changed the thermostat car still getting hot pouring out of the overflow only place we can find leaking what causes this

Car over heated 2 days ago changed thermostat still getting hotter than usual losing water ound when car is hot pouring out of the overflow cant find any other leaks just want ideas on what to look for and what it might be thanks

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The radiator is partially blocked, and heat transfer from water to air cannot be acheived, the radiator, if in good condition can be taken apart and the tubed cleaned, if the radiator is showing signs of fin deteriation, the whole thing must be replaced.

Posted on Dec 01, 2012

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

farroutideas
  • 78 Answers

SOURCE: Water leaking from the Overflow tube out of the HVAC

Hi there;

Did you say coolant is coming from the HVAC? as in the heater box?
If so does it smell sweet in the cab & do the windows fog up when you turn on the defrost with it set on hot?
If you answered yes to these three questions, chances are very good you need to replace you heater core.
If the coolant is coming out of the overflow tank as soon as the engine is running & you find one or more of your spark plugs are white or very much diferent than the others you most likely have a head gasket leak.
With the info you have included I would have to point my finger at the heater core though.

Good luck, hope this helps, Let me kn ow if you need more input.
Farrout!

Posted on Mar 23, 2009

  • 36 Answers

SOURCE: heating problem

If you changed the thermostat yourself and have noted that the lower radiator hose is cooler than the upper radiator hose, you may have installed the thermostat incorrectly or have purchased a faulty thermostat. A lower radiator hose that does not get hot (or as hot as the upper radiator hose) is a direct indication of a faulty thermostat. Please vote for this solution if you found this to be helpful. Thanks,

Posted on Jun 01, 2009

  • 43 Answers

SOURCE: 1997 cadillac eldorado running hot

Sometimes a vacuume leak can cause overheating problems too.

Posted on Jun 19, 2009

  • 1 Answer

SOURCE: coolant leak and overheating

I had a water leak on my 730i I found it after much trouble.A hairline crack in the plastic thermostat housing which onlly opened up when hot and of course got worse as water level dropped.Hope this helps.

Posted on Oct 30, 2009

  • 1114 Answers

SOURCE: heater not heating hot enough. heater core not

Good place to start is a cooling system flush and thermostat replaced.

Posted on Dec 28, 2009

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