Question about 2002 Subaru Legacy

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Air conditioning makes a "moaning" sound

My 2002 Legacy Outback's AC makes an intermittent "moaning" sound when the compressor is running. When I turn the engine off it sounds like a fog horn gradually fading away to nothing. The AC still cools but I am afraid it means the compressor is going. Can it be something else?

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  • Anonymous Oct 08, 2008

    Air conditioning makes a "moaning" sound



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Posted on Jan 02, 2017

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SOURCE: Subaru Legacy 98' Outback Legacy won't start when hot

I have the same car - same problem. Too hot or too cold and then just another once and while for good measure :(
I've had the battery checked and is good. Is it likely to be the starter?

Posted on Dec 10, 2009

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SOURCE: 1998 Subaru Legacy Outback--Rough Idle

I have the same problem!Running on three.I have checked compression,wires,plugs.Changed injecters,plugs.
3 mech.cant figuire it out???

Posted on Aug 01, 2010

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SOURCE: Hi, we just bought a used 2006 Subaru Legacy

sounds like the electric fans are not kicking in easy way to find out is to let the car idle and see if they start up when the car gets hot if not ther will be a thermo switch in the radiator that you can replace and if that doesnt fix the problem it could be the relay in your fuse box in your engine bay

Posted on Mar 02, 2011

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