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Vacuum System Diagram 300 1988

I have a 1988 740 Turbo (B230FT) and am wondering if there is a diagram anywhere of where all the vacuum hoses go.

I THINK I need this because there is a lovely hissing noise by my left knee when the turbo kicks in and I found a loose and wondering hose (it was looser after I pulled on it!) and I am not sure where it goes. Also the end of the hose is split and broken so probably needs replacing.

Thanks.







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