What is this? And is this green bubbly stuff in it normal?
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Cadillac Catera and Cimarron Forum Discussion, What is this? And is this green bubbly stuff in it normal? in Past Cadillac Vehicle Discussion; This is located right below the AIR Control Valve toward the front right of vehicle. See image below for more......
  1. #1
    Kartune is offline Cadillac Owners Member
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    Question What is this? And is this green bubbly stuff in it normal?

    This is located right below the AIR Control Valve toward the front right of vehicle. See image below for more...
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  3. #2
    retho78 is offline Cadillac Owners Connoisseur
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    Re: What is this? And is this green bubbly stuff in it normal?

    That's the AC high side pressure valve. From the picture I see it may have a slight leak.

    My 98 Catera has the same problem, so just bought the valve last week. The lines do have refrigerant in it and you will have to evacuate refrigerant and then replace the valve.

    Here is my thread and shows the part number.


    http://www.cadillacforums.com/forums...sure-line.html


    Thanks.

  4. #3
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    The cap is missing. The cap has an o ring, and without it, the valve will leak slightly. Any parts store should have a replacement, just make sure it has an O ring in it.

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    kaustein is offline Cadillac Owners Enthusiast
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    Re: What is this? And is this green bubbly stuff in it normal?

    obtw, pics nicely done!

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    Kartune is offline Cadillac Owners Member
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    Re: What is this? And is this green bubbly stuff in it normal?

    Thanks! So basically I am going to need to replace the whole valve or just a cap? On my grandfather's '98 Catera it looks exactly the same but without the green stuff in it. What does this cap look like?

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    MoistCabbage's Avatar
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    Some valves seem to seep more than others. The cap should take care of it as long as it isn't hissing.

    Google AC service port cap.

  8. #7
    retho78 is offline Cadillac Owners Connoisseur
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    Re: What is this? And is this green bubbly stuff in it normal?

    There should be a black rubber cap in the valve and I believe when there is pressure in the line it seals it nice and tight. My has the rubber cap but leaks a little and has a hissing sound. I bought the new valve from amazon.com because I have the prime account and faster shipping. Even rockauto.com sells it.


    Thanks.

  9. #8
    MoistCabbage's Avatar
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    A rubber cap? Should be a threaded plastic cap with an o ring inside.

  10. #9
    retho78 is offline Cadillac Owners Connoisseur
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    Re: What is this? And is this green bubbly stuff in it normal?

    Maybe plastic looked like a hard rubber to me :-).

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