Was wondering if anyone can shed some light on this problem that I have had with my car for quite a while. When the engine is up to temperature (doesn't occur running a cold engine) the car makes what I can only be described as a "hooting" noise. I had checked under the bonnet and there are no trapped owls that I can see.
Heres a video clip of what happens:
Any suggestions will be much appreciated. I have had to oil filter changed in it's last service, so I don't think its the oil filter housing.