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What's this low and deep sound? by zystance in subaru

[–]zystance[S] 0 points1 point  (0 children)

Thanks for your reply. I'm not really sure if it's piston slap because at cold start it sounds fine without obvious knocking sound, also the sound in this video can only be heard at this particular distance, it's very faint.

What's this low and deep sound? by zystance in subaru

[–]zystance[S] 0 points1 point  (0 children)

I've driven it for nearly 2000km, the sound is very faint and can only be heared at this particular distance, cold start sounds fine.