Hey Scotty, I have this noise in my car almost all the time the engine is on (idling or not). I can…

Hey Scotty,
I have this noise in my car almost all the time the engine is on (idling or not). I can hear it more in the night when it's more quiet

Appreciate if you can tell me what is that? Is it urgent to get it repaired?
I have this noise for almost 1 year
It's Pontiac Wave 2007 (like Chevrolet Aveo) with 92,000 km

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