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I noticed a hiss coming from the engine when I step on the gas pedal (rev) @ lower speed (between 0-40mph) & at around 2500+ RPM. however, I don't hear the hiss when I go over 40mph. EVERYTHING STOCK!
Am I the only who has this issue?
What could goes wrong?
If the noise is truly coming from the engine bay, pin point it by having someone in the cabin giving it some revs while you listen/search for the problem area. I'm leaning towards a vacuum leak, serp belt, or a intake/exhaust leak.