Hey Everyone, I have a 2013 g37x with about 39k km on it and notice a noise coming from the transmission once the engine gets up to temp. It sounds like a mix of wheel bearing growl and blower motor bearing noise and frequency. It happens when under light to barely medium acceleration, under braking, coasting, and when stationary in either drive or reverse. It also happens whether the HVAC and/or AC is on or off. I have a video of it linked below, a bit hard to tell, but it is in there.

thank you in advance for the help!!

Video here

 

Did you ever figure it out? I’m having the same issue and I’m starting to think it’s the torque converter.

 

Honestly after a few transmission fluid changes it went away. Found it made the least amount of noise with Valvoline maxlife. Worth picking up around 15 litres to do the full job.