On Acceleration Between 2.0 To 2.5 Rpm Air Hissing Noise

[mann777]

The symptom, I am unable to figure out, where is the Air Whooshing, or could say hissing noise while accelerating btw 2000-2500 on the RPM, and just for a few seconds, and thats it, And it just normal after that. I have checked all hoses clamps, Exhaust port, belts, Radiator, Bearings, Everything is checked and removed,all in perfect condition, no signs of any damages, any ideas :( would be appreiciated

[cs378]

Hello

I have the same exact problem.

I just got my GX460 a week ago. I didn't notice any of does sound until I played with the 4H 4L function.

If you find the problem, please post.

Thank you