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vw hooting/ moaning noise from dash area

dieselbug on Fri May 30, 2008 2:10 PM User is offlineView users profile

Year: 1998
Make: vw
Model: beetle
Engine Size: 1.9l die
Refrigerant Type: r134
Country of Origin: United States

the original compressor locked up. Shortly after that had a front end collision. replaced condenser, compressor, receiver dryer, expansion valve, high side liquid line from condenser to expansion valve, and new seals at all points that were opened. flushed, vacuumed, and filled to amount shown on under hood sticker. The system cools fine like it always has. A couple of weeks later it started a intermittent hooting moaning noise from blower area. I thought the blower bearing was going out. it will not make noise on heat or blower only. blower speed has not made a difference. except off which turns compressor off. you can feel a vibration on the blower when the noise is present. I recently removed blower tried to add a little oil to shaft bearings it did not help. Then the blower fuse blew out. Replaced blower with new one. Noise still there. Last week my son tells me his 2006 vw golf is making a growling noise then a/c quits will not start then today it starts with no noise. any one have any ideas. Thanks Chuck

TRB on Fri May 30, 2008 2:57 PM User is offlineView users profile

Sounds like a noisy exp valve which generally will go away with some wear. But the comment it stopped cooling and started again has me thrown.

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Chick on Fri May 30, 2008 3:46 PM User is offlineView users profile

Did you replace the compressor with new or reman, used? Good vacuum pulled before charging? as far as the other one, pressures would help.. They use a varuiable displacement compressor, could be a sticking control valve..Common problem on those compressors..Just a thought..

I re-read and see you did pull a vacuum, I would check pressures on that one too, could have a small leak causing the expansion valve to howl...

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