Background faint hum/whistling noise in engine bay

[matth76 0]

Hi

 

I can notice a faint consistent hum/whistling noise in the background when my engine is running. I've got a Golf VR6 (1997). It doesn't bother me and is hardly noticable but is there. I may be wrong but the sound seems to come from the passenger side (but that was from listening from inside the car so may be wrong on this). I suspect it is a belt or similar. When I rev the engine at a standstill the faint noise also increases, so is linked to the engine in someway or a belt.

 

I've just had my chains done and clutch. I also have a stainless 6 branch exhaust manifold, which has a different sound when the exhaust gases flow through it. The noise I am hearing today is different.

 

Any ideas what it might be or if it's serious? I don't think it's the fans as I have heard the fans before and their noise is different.

 

Thanks

 

Matt

[Walesy 0]

Hiya mate

 

If you use the search you'll find quite a few threads regarding the same sort of problem, try and latch on to one of them.

 

like this one

 

 

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