u/Justincopsitall

▲ 8 r/WRXSTi+1 crossposts

HELP! WRX AC NOISES

My 2019 WRX recently started making a loud growling/rattling noise, but only when the A/C is on.
As soon as I turn the A/C off, the noise disappears.

- A/C still blows ice cold.
- Noise happens during idle but is louder when revving and sometimes rattles.
- Above ~2.5k RPM sound mostly goes away.
-Car feels like it has a little more drag and jerking in low RPMS with the A/C on.

Does this sound like a failing A/C compressor, compressor clutch, belt tensioner, or something else? Should this be an urgent fix if it’s still cold or can I wait it out until it completely fails then fix?

u/Justincopsitall — 4 days ago