Whistle / Whine when cruising in gear? with Videos

[MorroN]

Hi Guys,
I recently changed my engine mounts all round and ever since then my car has developed a strange whistle/ whine sound at certain speeds/ throttle positions. Best I can describe it as is like a small owl is trapped under the bonnet and is howling to get out. Its coming from the passenger side of the engine bay. Im hoping I havent fucked something up when changing the mounts!

Im thinking its probably something gearbox related but could it be the airbox whistling? I also did the spark plugs, so perhaps theres a leak in the inlet?

It's loudest when cruising at about 40mph in 4th just coming on and off throttle, its also noticable at really low revs, low throttle in second. Sounds quiet in the video but it really is quite loud in real life.

Have a listen and let me know what you think, thanks!

 

[MorroN]

So I've taken the inlet off again to check its all sealed, refitted it and started her up... It sounds as if its coming from directly underneath the coil pack? Am I right in saying thats the breather gasket?

Cheers

 

[MorroN]

Replaced inlet and breather gasket, no change in the sound. Ran car with a cone filter on and the sound is still there, anybody have any more ideas? Really frustrating!

 

[RubberDuck]

Have you recently had the cam belt changed, if overtightened they can whine slightly

 

[MorroN]

Have you recently had the cam belt changed, if overtightened they can whine slightly

Thanks for your reply
Cambelt was changed 3 months ago by a specialist, there is a whine from the PAS pump but this is a seperate noise

 

[MorroN]

Have noticed today the car is idling a bit higher than normal at just under 1k rpm, could this indicate an air leak?