Hi,

may sound strange but I really enjoy driving my Quest - unfortunately, a few months ago it started making louder noises with higher rpms (~ >= 3,000 rpm) particularly under load, e.g. an incline. It never made this noise before.

Both a Nissan dealer and an independent repair shop that specializes in Japanese brands could not locate any problem. No engine light is on and the vehicle has been take care of meticulously. Here is a video with the van going up an incline that demonstrates the noise.

https://www.dropbox.com/s/eorljm17bp..._8368.mov?dl=0

I hope someone recognizes the sound and/or can suggest how to go about locating the cause.

Thanks & cheerio, Harry.