Alright guys, this is my First Thread (except for the newbie one) and I need some help with a problem i keep hearing is "common" among 240SXs I have a '93 240SX SE auto KA24DE DOHC

It seems that when i accelerate over roughly 3500 RPM I start to get a whistling sound.

I took it to my mechanic, (b/c i dont do trannies) and he said that it was a common problem and as long as the car is changing gears (and it is) then to not worry about it.

But it is a VERY irritating sound when I am driving "enthusiastically" drop me a line, IM me, or PM me. I NEED to know what in the world is going on.

Im tired of people saying its a "common" problem, when i cant find a fix or documentation of it anywhere....