Irritating squeal..

[thebfg2003]

Hi, I had an annoying squeal coming from under the bonnet.  :-k I have changed the aux belt, belt tensioner, tried the 1p coin trick, and still the noise was there. I tracked it down to the alternator bearing which was screeching on reving and driving. So i fitted a brand new alternator. this worked for about a 3 days. Now the screeching is back  :-k any ideas :-k.
Has anyone had the same problem??

Cheers
Kev
 

[SteveGoodz]

Not wishing to be overly pessimistic but my first port of call would be the water pump  [-o<

[beast5680]

check the pulley on the power steering pump, mine started to move out as the pump was knackered causing the belt to squeal

[freelanderpx54]

Install the wife in the passenger seat. The two squealing should conteract each other. 

[thebfg2003]

Now sorted :dance:  After all the hassle trying to pin it down, it was the new drive belt  :roll:.. Apparently there are 2 types of belt for the 300tdi.
Up to engine number 16L25165 use ERR3287
After that number use the slightly longer one ERR5911. 

Fitted and sorted....piece at last

Kev