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A/C blows hot

This is a discussion on A/C blows hot within the General Help forums, part of the LSx Technical Help Section category; For the past few months my A/C has blown hot and I just decided to take a look at it. ...

  1. #1
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    Exclamation A/C blows hot

    For the past few months my A/C has blown hot and I just decided to take a look at it. I started by re-charging it. That didn't work. The clutch is engaging the compressor. The fuses/relays look fine. I don't see any leaks. When I turn the A/C on I do now notice that the compressor is making a somewhat loud almost grinding/clicking noise. Just noticed this noise since I recharged it (might just be coincidence). Any ideas where to go from here? I don't want to replace compressor if I don't need to.

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    Exalted Cyclops 67CamaroRSSS's Avatar
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    My 98 had some leaks that I discovered last year when it started blowing warmish. Recharged it and it only lasted a few days. Car has 183,xxx on it so I ended up replacing almost everything as you can't go without AC here in the PHX.

    Well you could but I won't...
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  3. #3
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    The only way you can lose refrigerant is through a leak.. Whether it's a fitting, bad compressor, line, etc. If the compressor is bad, it may not be pumping properly. You can take it to a reputable shop so they can add dye to the system and locate any leaks. And/or, determine whether the pump is bad or not.
    Generally speaking, if the pump is making noises that it never made before it could be the pump is shot or dieing..
    When refrigerant levels fall to a sertain point the clutch will stop working and the pump won't run..

    Seperately,, Not only can it be dangerous to over fill the system, it can have damaging effects on the pump..
    Since most R134a contains pump lube, Ima have to say the pump is prolly gone..
    Last edited by Smittro; 07-02-2011 at 03:10 AM.

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    Where is the pump located? Is it part of the compressor?

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by 00hawk109 View Post
    Where is the pump located? Is it part of the compressor?
    They are the same thing.. Just two different words, sorry..
    Last edited by Smittro; 07-02-2011 at 01:59 PM.

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    ok cool thanks for the info!

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    Smiles for 9.5 Years cammed goat's Avatar
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    Quote Originally Posted by Smittro View Post
    The only way you can lose refrigerant is through a leak.. Whether it's a fitting, bad compressor, line, etc. If the compressor is bad, it may not be pumping properly. You can take it to a reputable shop so they can add dye to the system and locate any leaks. And/or, determine whether the pump is bad or not.
    Generally speaking, if the pump is making noises that it never made before it could be the pump is shot or dieing..
    When refrigerant levels fall to a sertain point the clutch will stop working and the pump won't run..

    Seperately,, Not only can it be dangerous to over fill the system, it can have damaging effects on the pump..
    Since most R134a contains pump lube, Ima have to say the pump is prolly gone..

    ^^this.

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    Member importhater81's Avatar
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    You need to put a set of pressure gauges on the lines and read the pressures. As I understand from the first post,refridgerant was added but didn't fix the problem.

    A clogged orifice tube,inop cooling fans or a bad compressor can all cause poor a/c performance

  9. #9
    Junior Member Ortiz11b's Avatar
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    also could be over charged.. it then will also act like its low on freon... really need to check the pressure with a good set of gauges...

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