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2016 MDX Adv/Ent 27200 miles

Lately when the engine is on, there's this constant ticking noise, similar to if your desktop PC is on.
Also when I turn on the heat, there'd be constant noise similar to cicadas in the summer except it's very faint but just enough to annoy the heck out of me.

I'm not sure how I can address these issues to the dealer without being accused of being too picky. Plus you can only hear them when it's quiet in the car.
 

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Acura added direct injection to the 3.5 V6 in 2016. You can hear a ticking noise coming from the running engine, and this is from the fuel injectors opening and closing, as a DI engine operates at a very high fuel pressure. But you should only hear it when you're outside the vehicle.
 
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