2003 Subaru Legacy Noises

have a local pro check this out it may be a relay stuck or something like that. but it should be checked soon

Does that happen if ur a/c was over charged an now it don't do it while I drive It happens if I put the heat on is when it starts to hum an screech?

I also had a new fuel filter put in if they put the rong one can that be an issue an make that sound?

if the a/c was overcharged it wouldn' t cool right but it may be something like a/c fluid settling after using. that is why I said have a local guy listen to it.if the fuel filter was wrong it would probably leak.

Ok thank you now as far as putting the heat on an it humming an screeching does the heat run of the a/c compressor to?

only on defrost cycle until it gets colder outside

Do u have any suggestions on what that could be I made an appointment to get it looked at tomorrow but just wanna have some ideas to throw at the mechanic when I go thanks

not that I can think of as I can't hear it. if it's loud enough he should give an answer