Question about 1999 Lincoln Navigator

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2001 navigator a/c blows out of defrost vents upon accelleration

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  • jbrune777 Jul 03, 2009

    thank you for responding, we have checked every hose under the hood and sprayed carb cleaner on every hose. I was thinking to myself i could be a check valve. NOW, WHERE will i find the check valve, are there more than one? Thank you again for your help.

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  • Lincoln Master
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U have a bad vacuum some where or a ceck valve is busted should be on passeger side under hood small hose with a plastic valve

Posted on Jul 03, 2009

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