Thread: A/C and Heat

  1. #1
    iampalibro's Avatar
    iampalibro is offline Junior Member
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    A/C and Heat

    Does anyone know why when I turn my AC or Heat it only blows hard out of the top vent? Picture attached... Also does anyone know what this wire is for?

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  2. #2
    JPNinPA's Avatar
    JPNinPA is offline Senior Member
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    Re: A/C and Heat

    Yes


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    JPNinPA

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    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  3. #3
    JPNinPA's Avatar
    JPNinPA is offline Senior Member
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    Re: A/C and Heat

    You have a vacuum leak.
    Start at the intake and trace the vac line that enters the cabin through the firewall passenger side.


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    JPNinPA

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    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  4. #4
    JPNinPA's Avatar
    JPNinPA is offline Senior Member
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    Re: A/C and Heat

    No kidding the select switch is a vacuum switch. Lose vac and air only blows out the defrost.


    JPNinPA
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    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  5. #5
    TerryMason's Avatar
    TerryMason is offline Administrator
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    Re: A/C and Heat

    I had the exact same problem until I found my vacuum leak

    https://www.jeepz.com/forum/cj-yj-tj...ter-works.html (Only the defroster works!)

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