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Engine rattle at 2200 RPM (VIAS valve???)

4K views 2 replies 2 participants last post by  soliton 
#1 ·
Hello,

My beloved 07 Mo has developed an annoying rattle. The metallic sounding rattle only happens at about 2200 RPM (+/- 100 RPM). It happens during up and down revving, but it is most noticeable during up revving.
A bit of background on the vehicle: I bought it new in 07 and now it has 144k miles. Never towed anything. I keep up with the regular maintenance. The car is in fantastic shape.
I did and extensive google search (and nissanmurano.org) and the only issue that could explain the rattle is an issue with a VIAS power valve actuator in 05 Xterras with the VQ40 engine. Nissan released a TSB back in 05 to resolve this issue:
http://www.clubfrontier.org/forums/...ck-took-my-05-frontier-service-ntb05-015b.pdf
Has anyone in the Murano community encounter this peculiar 2200 RPM rattle?

Salud!
 
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