Was in the que for KFC last night when i could hear this really odd noise (as i had the window down but radio on). Anyway when i pulled forward the noise slowed down into a much deeper rumble before greadually building up to the same. Its definately mine cos you could feel it resonate through the steering wheel. I thought it may be the PAS pump running dry, but the bottles full. Popped bonnet but couldnt see anythin. Its a graunchy grunmble noise.
Anybody had anything like this. the noise remained constant when i revved the engine so its anything to do with that. What else could it be? Any aux belts of anything?