my ac all of a sudden is extremely loud, it kinda sounds like a tractor only when its at full blast. what can cause this? should i be worried?

thank u in advance

98 volvo s70 glt 108k on the od

 

blower motor goin out.

 

you mean you blower motor or a/c??

 

i think he means blower motor. if you can locate the source of the noise it will help you diagnose it. you may also have a problem with the clutch on your a/c compressor. if the noise is present with the heat on as well, i would agree the blower motor is suspect.