99 1.8T stock.....
Have a noise... like a wheezy up and down noise, increases speed with the engine, thinking perhaps a leaky something or other, think it is coming from the drivers side of the engine, could it be a slpit hose or something more serious... very worried

please advise!!!
To explain the problem more consisely....
Not noticed any decrease in engine power, is there always, from start, even without moving but when I move the noise gets faster...!!!