Question about 1999 Ford F150 Regular Cab

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1999 Ford f-150 blows hot air for ac

I turn on my ac on low and the ac blows cold but if i turn it any higher it will blow out hot, can anyone help?

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  • mikkee777 May 24, 2009

    Thanks i checked the vacumn lines by the battery and moved them around and seemed to help hopefully it stays that way. Thanks this tip was awsome

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  • 14 Answers

Sounds like a broken or cracked vacuum line under the hood.

Posted on May 24, 2009

  • stonedcrab May 24, 2009

    You should probably replace all of the small (pencil size or thinner) vacuum lines. They're cheap and its easy to do.

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