Question about 1999 Ford Expedition

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Anti freeze leaking from rear ac condensation tube

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  • Jeremy Lamb May 11, 2010

    any more details please

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Sounds like a leak in your rear heater core.

Posted on Mar 05, 2009

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Why does my Buick Rendevous, 2005, leak water into both front floorboards?


Is it leaking water or Anti Freeze?
If it's Anti Freeze you can pull down the rug or floor mat to check, you should also smell the Anti Freeze. This means your heater core is leaking & has to be replaced, if it's not leaking bad you can try a sealer called Aluma seal (my spelling could be wrong),looks about the size of a roll of dimes, most auto stores have it.
If it's water, my guess is the AC condensation hose is blocked. Does it leak only when the AC is on? this hose runs outside, usually on the
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Suspect leaking AC condensate drain line, unless it smells like anti-freeze, in which case its the heater core.

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Heater core


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