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Thread: condenser leak on 94 fwn?

  1. #1
    newside is offline Cadillac Owners Fanatic
    Automobile(s): 1994 fleetwood, 1979 deville, 1992 eldorado
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    condenser leak on 94 fwn?

    hi guys. My ac is not working so i charged it up. When i shut the car off i can hear hissing between the radiator and the condenser? does the condenser develope leaks without being damaged? Being aluminum i thought they wouldn't wear out from just normal use. Tomorrow i'll get some leak detector and cheak for the leak.
    thanks in advance


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  3. #2
    turbojimmy's Avatar
    turbojimmy is offline Cadillac Owners Connoisseur
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    Re: condenser leak on 94 fwn?

    The hissing is the high and low sides equalizing through the orifice valve after you shut the compressor off. It's normal.

  4. #3
    newside is offline Cadillac Owners Fanatic
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    Re: condenser leak on 94 fwn?

    thanks turbojimmy. the hissing contined for at least a half hour after i shut the car off. and now the compressor is off. would the equalizing last a half hour to 45 minutes after the car shutoff?

  5. #4
    turbojimmy's Avatar
    turbojimmy is offline Cadillac Owners Connoisseur
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    Re: condenser leak on 94 fwn?

    No. It should only hiss for a few seconds. You have a leak :-)

  6. #5
    newside is offline Cadillac Owners Fanatic
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    Re: condenser leak on 94 fwn?

    would the aluminum condenser itself develope a leak or is it usually an o=ring failure. thanks

  7. #6
    turbojimmy's Avatar
    turbojimmy is offline Cadillac Owners Connoisseur
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    Re: condenser leak on 94 fwn?

    The condenser shouldn't leak unless it's damaged. Check the fittings carefully over by the radiator - it could be an o-ring. It would be odd, though, for it to suddenly spring a leak unless it was messed with.


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