loose belt

[Ash02WRX]

When I start my 02'WRX cold it has been making a squealing noise lately. It will start squealing after a few seconds and then if I push the clutch in a few times it will usually stop. Then I don't seem to have any problems with it until the next morning when I fire it up again. I was wondering if there is a way to tell which belt is loose and if this is something that I can replace/take care of myself. I am technically inclined and have access to all sorts of tools.

[SD_GR]

You can check the deflection but ultimately it is not that much more trouble and expense to change both belts rather than just one. Mark the tensioners to know how tight the belts were originally. You may have to tap the alternator with a mallet to get it to move in and down toward the A/C compressor. Take your time and use only authentic parts. It's not difficult, even I can do it.