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AC only blows out into floor

This is a discussion on AC only blows out into floor within the External Engine forums, part of the LSx Technical Help Section category; My ac will not blow through the vents, only comes out in the floor. It blows cold air though. Any ...

  1. #1
    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    AC only blows out into floor

    My ac will not blow through the vents, only comes out in the floor. It blows cold air though. Any ideas what could be wrong ?

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    Sounds like a vacume leak somewhere.Check for a line unplugged might be on your intake thats what happened to mine.

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    It should default to defrost if it lost all vacuum.
    Last edited by Ten5TireRacer; 05-16-2009 at 07:07 AM. Reason: x

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    Just me Y2KPewterSS's Avatar
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    You have a vacuum leak. The line that runs to the back of the intake will be your source.

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    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    Quote Originally Posted by Y2KPewterSS View Post
    You have a vacuum leak. The line that runs to the back of the intake will be your source.
    could you please post a pic preston ? I looked today and had no luck. Somebody told me that it would be located on the passenger side in the corner. thanks for the help

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    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    Quote Originally Posted by Y2KPewterSS View Post
    You have a vacuum leak. The line that runs to the back of the intake will be your source.
    also how do you repair the vaccum line ? Do you have to replace the entire line ?

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    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    could it be the check valve ?

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    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    will I have to remove anything to be able to see the line ?

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    Line should come out near the heater core/ac box area and heads to the passengers side of the intake. There is a valve there as well. Autozone sells the stuff

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    Just me Y2KPewterSS's Avatar
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    Quote Originally Posted by SpeedAddict38 View Post
    could you please post a pic preston ? I looked today and had no luck. Somebody told me that it would be located on the passenger side in the corner. thanks for the help


    The hose you see sticking up in the far back attaches to the back of the intake. Its a vacuum hose, its probably your issue.



    Look to the left of the metal a/c connection in the picture above, thats also your vacuum connections, you need to check it as well.

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    Just me Y2KPewterSS's Avatar
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    Quote Originally Posted by SpeedAddict38 View Post
    also how do you repair the vaccum line ? Do you have to replace the entire line ?
    Part of my vacuum line was crushed under my intake. My dash vents were not opening either. I bought some vacuum hose from Oreilleys and cut off the crushed part and connected the new hose and re-connected it to the back of the intake, problem sovled.

  12. #12
    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    thanks for all the help I am going to work on it Monday

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    Quote Originally Posted by Y2KPewterSS View Post
    Click for full size

    The hose you see sticking up in the far back attaches to the back of the intake. Its a vacuum hose, its probably your issue.

    Click for full size

    Look to the left of the metal a/c connection in the picture above, thats also your vacuum connections, you need to check it as well.
    Im sorry, i hardly go off topic.. but


    IS THAT DUST ON YOUR FRC???
    2002 Camaro SS A4 - SLP# 2951 l MS4 l LT's w/ORY l F.A.S.T 78 & TB l Borla l Cutout l CME l TCI 3500 l 3.23's l !emissions l !sway

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    Just me Y2KPewterSS's Avatar
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    Quote Originally Posted by Sarge91 View Post
    Im sorry, i hardly go off topic.. but


    IS THAT DUST ON YOUR FRC???
    Probably, engine bay is ready for a detailing.

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    - STOCK ish - Sarge91's Avatar
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    Quote Originally Posted by Y2KPewterSS View Post
    Probably, engine bay is ready for a detailing.
    ok, tell me when your going to do yours, ill drive my car to your house and get u to do mine also!

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    Ebaaaaaaaaa Speedy_Gonzales's Avatar
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    how do I get to the line in the rear of the intake ?

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    Quote Originally Posted by SpeedAddict38 View Post
    how do I get to the line in the rear of the intake ?
    Feel for it or take off the intake.

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