Q: Engine maks tapping noise when cold on 2011 Nissan Altima

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I've had my 2011 Altima for about 3 months, and almost the entire time I've had it, it makes a loud tapping/ticking sound from the engine when the engine is cold. The noise is worse when I accelerate. Once the car warms up, I don't hear it as loudly. The dealer said all 2.5's make that noise, but I can imagine why an engine would make that kind of noise if nothing was wrong. Any suggestions?
(1) Answer
no tsb's or recalls on 2010 or 2011. i suggest you take it back to dealer as no noise in the motor is normal. have them start one on the lot cold and see if it makes noise as well.