intermittent engine noise

[maurice vn]

since a couple of days, sometimes there is a strange noise coming from the engine compartiment.

I posted this video on youtube

20120226_155134.mp4 - YouTube

Any help welcome.

regards

maurice

[BerneseMtnDog]

First thing I'd do is take off the serpentine belt and check the condition of the idler pulleys and accessories like the water pump, etc.. You want to know if it's in the engine or a bad bearing in the idlers or accessories. Check for play and looseness. I had an idler pulley wear out which made a similar sound. Not quite that dramatic though.

Steve