Well my wife's Versa had been making an upper engine tapping noise on cold start up that lasted about 20 miles or so. Long story short I told her it sounded like piston slap and that it wasnt normal, nor was it a good thing. Kinda sounds like an upper engine valve train noise. Took it in to Nissan, and of course they couldnt duplicate the sound. A week later I take it back, walk the tech thru the noise, give my input, and then the service advisor has him call Nissan direct....they ran the tech thru some scenarios and a phone call to me later was that a new short block was ordered. Wow....I would have never figured piston slap on a fairly new car. I will advise all that if your engine makes a similar noise, get it in to be looked at. Yes, I know alot of Versa make noise, but this was gut wrenching to listen to. While the car was at the dealership, I went ahead and did the timing chain on my 2000 Frontier. The dealership wants to hire me a few days a week or pay me to be on call a few days....lol I am retired and at 40 I think it would be fun, but then again, fun slowly turns back into work. Ok back on topic. Anyone else have upper engine noise on start up?