Question about 2005 Ford Mustang

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I have a coolant leak in my 2005 Ford Mustang from behind the thermostat. What is causing this?

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  • cheris_hodge May 09, 2009

    The engine Thermostat.

  • cheris_hodge May 09, 2009

    The thermostat was replaced, but the leak is still happening. It's behind the thermostat where the leak is. Could it be the water pump?

  • Mike Wine May 11, 2010

    meaning the leak is coming from where the thermostat is located??? possilby bad seal with the thermostat. I would pull and replace, especially if you know that that is where the leak is coming from.

  • May 11, 2010

    You mean the engine thermostat or the interior A/C thermostat?

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I just had this happen to me we had to replaced the whole thermostat housing because its plastic it cracked no explanation why but the crack was in the very back leaking down towards the waterpump .

Posted on May 24, 2009

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