This sienna recently had an engine recalibration for a mnfr recall. Not sure if this noise was there before, but I noticed it now.
While idling, I hear this 'knocking'/tapping/ticking.., Its like the noise that a ceiling fan would make youtube.com/watch?v=icQhHIzvzeE
I could take it back to the dealer, but I give it 90% chance that they don't take me seriosuly. Their standard reply has been its normal, unless check engine light is on.
I can hear it in the cabin, but its subtle. So I recorded this near the engine.
How long has your 2017 Toyota Sienna had this problem?
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