whining noise from Ls1, please help

[YILDI2]

Hi guys, my latest problem from my new car (vt clubby ) is a whining noise that can be herd after around 700-800rpm, as I accelerate the whine can't be herd, as I let go of the throttle the whine begins until I come to a stop where revs go to when sitting in drive, I thought it could be a belt noise, I remember hearing it slightly for small amounts of time a week ago and since yesterday it hasn't stop, any advice would be appreciated thanks guys

[YILDI2]

and also since the same day as the whine, the traction control has been off, i cant get it to go on just stays on off, if it has anything to do with it ?

[YILDI2]

could it be the diff ?? im pretty sure i can hear it in the engine bay though, but when i did do a quick take off, with traction off, it looked asif i didnt have a lsd there was one tyre line and the other way to faded to see, could this mean my diff is stuffed ? as i read up on other diff noise issues, but they speak of a clunk and whining mine doesnt clunk. could a service fix this up ?

[GM GEN3]

I had a whine noise turned out to be air con tensioner pulley but wit out hearing it it would be hard to say as for the diff get an oil change plus add lsd frictioner in should make it better

[MUT4NT]

i get the whine to...but i have recently gotten my diff fixed but today i heard belt whine from changing into 4th and a dump of the clutch but probably totally different whine....i think its just the airbox/pod filter

[YILDI2]

thanks for the advice guys, ill go with the oil change for the diff and lsd friction adder, and check my air box and pod

[madsav]

Any kind of LSD fluid ok to use in them diffs?
Local gearbox & diff guy told me to never replace the diff fluid, not sure as to why he said that thou

[6-PAC-ATTACK]

Hey mate before you start spending money you might not have first spray all pulllys with some wd40 or silicone spray that way you can isolate the problem if the noise is still ther travel at a speed were you can here the noise then put it in nutral if the noise stops its your diff

[YILDI2]

Thanks for that madsav I will look into it further but I'm pretty sure the nulon LSD oil can be used.
6 pack - I will try it out mate and ill wd 40 my pulleys

[YILDI2]

i have solved the problem ! i took off the nice and clean engine cover, to find 11 years of dust on the top of the engine! found a broken hose coming out of the manifold right before the throttle which was causing the fart like noise similar to a ballon when extending the lip which the hose was doing when de-accelerating, pulled a hose of my vr and chucked it on and all good now

[nitrowarrior]

And the Trac Control Fault,,, How are you going with that??? I have a similiar issue.......In a Tiger Mica SS....Trac Control throws an engine light and then shuts trac control off, engine light off.......wierd....next start up no problem, no error...very strange i dont like T/C faults....