159 2.4JTDm whining proportionally to revs
For the last 6 months or so I've been noticing a distinct whining noise coming from my engine bay. The whining seems proportional to engine revs. I initially suspected worn cam belts but after having these changed (they were due anyway, the car's done 65k) complete with new tensioners and water pump, the noise continued. So my next suspicion was the auxiliary belt. I had this replaced but without the tensioner this time as the garage doing the work, although given my 'blessing' to do so and having ordered the part in especially, said that the tensioner did not seem to be worn and didn't need replacing. When sticking my head under the bonnet and listening it's really hard to work out where the noise is coming from, although I think it sounds perhaps more on the offside where the belts are situated. Does anyone know whether there are common items that might produce such a whining noise? Thanks for any advice.