When ever I'm cruising at about 25mph or so in 3rd gear and i quickly step on the gas, I always hear this clinging sound. Sounds like something is loose. I have no idea what it is and i'm wondering if anyone else has somewhat experienced this or if you guys even know what i'm talking about. Sorry if i'm not being detailed enough.

 

I wouldn't know, but I would certainly take it in to Nissan to have it check, since you said it's a clinging noise. Sounds to me something metallic loose

 

Yeah... I'll take it up to Nissan and have it checked out...