Hey, whats up guys, ok so i have issue with my g37s. i did some research and it sounds like i have a spun rod bearing. Car runs smooth and drives great. Here the problem with the car parked on idle it runs great no ticking nor knocking sound no rough idle either everything seems to be normal. But when you gas the car little and reach about 1500-2500 rpms it make a wired engine noise (clunk clunk clunk) and it goes away in the higher rpms. when driving the car in the first gear you can hear it the same rpm range and it goes away as the rpms gets higher and when in the second you don't hear it at all. . I did some research and i came across it might be a spun rod bearing FML. but can you guys check your car and see if they makes the same kind of noise. Here what you have to do with the engine warm just rev the engine between 1500-2500 rpms and hold it and see if you hear the knocking noise. I will really appreciate it i trying to find another g37 local to hear but thought forum is the best help i can get.

 

anybody?
i will post the video up in little bit

 

here the video

 

sounds like the VVLE this has been ongoing issue with the 2008!

 

That doesn't sound normal at all.

 

I knw guys I just put in the redline oil and it did quit it down little

 

Sounds like VVEL not returning to low lift after high rpm. Take it to the dealer since, as far as I know, no indie shop has the know-how when it comes to VVEL.
Btw, how many miles?

 

thats what sounds like to me too. because i can hear it where the VVEL motors are at.

 

If it was a spun rod bearing, you would hear the clunking noise all throughout the RPM. In fact, the higher the RPM the more pronounced the sound would be, plus the sound wouldn't go away while driving.