放氣嘩佬問題

Yes, it is broken, blow-off valve is used for release pressure.
(焦)一聲 is when it releases pressure, if you dont have (焦)一聲, then the blow off valve is not working probably! Time for you to check!

2006-12-16 19:43:23 補充：
Of course, it can be fixed! Just change this component is okay on price, compare to change the whole turbocharger! Sori, you cannot just take it off, you need to replace it or you can take the whole turbo off!