climate fan noise when a/c kicks in - normal?

[Napalm]

When the a/c is on in my 2003 Legacy Wagon, a compressor kicks in every 30
seconds or so and runs for about 10-15 seconds. If my climate fan is on
within the car, a loud whirring noise starts while this compressor is on and
the noise builds with increasing engine revs (i.e., if I give the car gas).
If I turn the climate fan off, no noise. If I turn the a/c off and just run
the climate fan, I get only the normal climate fan noise.

This intermittent whirring when both a/c and the fan are on is driving me
nuts - does anyone else have this??

N

 

[nItpIk]

Somethings not right with your AC compressor or clutch or belt .. it's not
your interior fan. If the fan is off the compressor will not run.

 

[Nicolas Dore]

When the a/c is on in my 2003 Legacy Wagon, a compressor kicks in every 30
seconds or so and runs for about 10-15 seconds. If my climate fan is on
within the car, a loud whirring noise starts while this compressor is on and
the noise builds with increasing engine revs (i.e., if I give the car gas).
If I turn the climate fan off, no noise. If I turn the a/c off and just run
the climate fan, I get only the normal climate fan noise.

This intermittent whirring when both a/c and the fan are on is driving me
nuts - does anyone else have this??

N

Hello

I noticed a similar thing today: A whistling noise when the AC is
engaged (AC button pressed, fan running), changing with engine RPM.
Sounded a little like my old diesel Mercedes' turbo...

After reading your post I went back and tried a few things with the
car parked and noticed that the AC compressor does make a high pitched
noise when engaged, and it does go on and off.

Unfortunately, don't know the solution...

Nicolas