Whining noise when turning engine off

[CamCam85]

Hi guys,

Quick question, I have a 2004 VZ SV6 commodore that is making a whining / squeaking noise when I turn off the engine and sometimes when driving at low speeds. It sounds like a belt of some sorts but i'm unsure.

I've spoken to Holden about it and the problem never seems to happen when they test it.

I don't know whether its a belt, the transmission or even possibly my steering rack as I was told that there was a slight weep.

Any suggestions or advice would be greatly appreciated.

Regards,
Cameron

 

[Silverbird]

Hi Cameron. While it's idling and making the noise, I'd pour a bit of water onto the belt and see if it changes. That would rule out your belt. Mine used to slip and make horrible noises when it was wet.

 

[CamCam85]

Hi Silverbird,

I don't believe the sound occurs when it's idling, only when turning the engine off. I'll upload a video of it to Youtube.

Regards,
Cam

 

[CamCam85]

It's probably something very simple.

It sounds a lot louder when inside the car.

It only started after a mate decided to use degreaser on pretty much the entire engine bay after servicing.

 

[MYVESSV8]

one of your pulley's is u/s, bearing has been cleaned out of grease when said mate degreased everything (bet he used a pressure cleaner too!!!)

 

[Silverbird]

Thanks for the effort to upload the video. Hmmmm... I'll go and have a listen to mine and let you know if mine does it.

 

[Silverbird]

Mine's the same - from throttle body area. Something returning to home position.

 

[Cal_ais26]

Bringing up a old post but did you ever resolve this and what was it have the exact same issue on my 05 vz calais

 

[ant797]

I have known iac to buzz on many cars with ignition on acceserory could be that