Good afternoon fellow gear heads im wondering if anyone else has heard this chirping only at idle. I have a 2012 wrx aem cai stage 1. Its pretty faint and off and on any ideas would help thanks in advance
If it is relatively regular, try some belt dressing/conditioner as it only cost like 2-3 dollars at Walmart. If that makes the problem go away then you know its the belt. Dressing/conditioner is only temporary though, so plan on changing the belt.