Engine Problem Volvo V70 D5

[MGCYCLE]

Hi All,

I am posting on behalf of my brother who is having problem with the engine of his volvo.His description is as follows:

I got back from a 200 mile journey this morning and went to turn the car around and noticed that it is making a strange noise.

The engine sounds like it has a blow in the exhaust but I have been underneath and inspected and there is nothing wrong. On removing the oil filler cap it sounds like there is a strumming noise from inside the engine and my first thought is broken piston rings or bearings. I hope I'm wrong! I have been told that injectors can cause knocking but am not sure.

There is a video here I would really appreciate any advice.

http://s142.photobucket.com/albums/r110/samfontera...


The car is a 2002 V70 D5 (D5244 engine), it has covered 225000 miles and other than the noise at idle it drives perfectly. I have checked the MAF, replaced the fuel filter, shoved through some injector cleaner and changed the air filter.

The oil is not new but is at the correct level.

Thanks all

[y2blade]

sorry can't help

might be worth asking here
http://www.volvoforums.org.uk/

[Tunku]

Could be an inlet manifold swirl flap?