Sv6 engine noise idle

[Jasonjohn]

Hi all, does anyone find this noise strange coming from my engine bay while at idle. Vf commodore 2016 black edition, sounds like a bush inbetween idle like something is breathing
Video down below

 

[krusing]

Firstly,
Remove the belt,
And run it again,
(It will be ok to run for 30 sec’s,)
Is the noise still there ?,
Smoke Test it if you think it’s a vac leak,

Yes, you will get a DTC, and a MIL will pop up, , that can be reset by disconnect battery for 10 minutes.
Refit the belt and take it from there.

 

[krusing]

Was just thinking,
it does sound like a purge solenoid working overtime,
But that’s my hearing.

A pair of mechanics stethoscopes may determine what/where device it may be.

 

[Jasonjohn]

Was just thinking,
it does sound like a purge solenoid working overtime,
But that’s my hearing.

A pair of mechanics stethoscopes may determine what/where device it may be.

Firstly,
Remove the belt,
And run it again,
(It will be ok to run for 30 sec’s,)
Is the noise still there ?,
Smoke Test it if you think it’s a vac leak,

Yes, you will get a DTC, and a MIL will pop up, , that can be reset by disconnect battery for 10 minutes.
Refit the belt and take it from there.

Done this noise still there.

 

[Jasonjohn]

Firstly,
Remove the belt,
And run it again,
(It will be ok to run for 30 sec’s,)
Is the noise still there ?,
Smoke Test it if you think it’s a vac leak,

Yes, you will get a DTC, and a MIL will pop up, , that can be reset by disconnect battery for 10 minutes.
Refit the belt and take it from there.

How to do a smoke test?

 

[krusing]

How to do a smoke test?

You need someone with a smoke machine, and know what they are doing.
This pressurises the intake manifold and vac pipes/lines, and will show up any vac pipe leaks.
Not many mechanics can do this, or. know how to do it,

I am not saying it is a vac leak, going by what you mentioned, if you get it done, and there is no leaks, it will rule out that area of faults.

 

[Jasonjohn]

You need someone with a smoke machine, and know what they are doing.
This pressurises the intake manifold and vac pipes/lines, and will show up any vac pipe leaks.
Not many mechanics can do this, or. know how to do it,

I am not saying it is a vac leak, going by what you mentioned, if you get it done, and there is no leaks, it will rule out that area of faults.

I’m also getting a metallic clunk when letting go of the accelerator and then as I tap the accelerator along with clunks from park to drive. Any idea of what that could be? It’s in one of my other posts on this page. I have been to a diff shop no play in the diff and everything is tight apparently. I’m supposed to be taking my car to a holden dealer next month $210 an hour to find the fault. Hoping someone can help me diagnose this noise first I’ll attach the video of it below anyway for you mate you sound like you know what you’re talking about

 

[krusing]

Possibly centre bearing,
Front strut tops,
Front struts,
Engine mounts,
Transmission mount.

 

[Jasonjohn]

Possibly centre bearing,
Front strut tops,
Front struts,
Engine mounts,
Transmission mount.

Any other possibilities? Engine mounts trans mounts struts have all been checked by a local mechanic all are ok apparently. No one seems to be able to diagnose the problem