VT II, v6 leaking fuel hose and vacuum hissing niose.

[commodoredave]

no turbo or scharge. Fuel injection rubber fuel hose that connects to the passenger side fuel rail is leaking slioghtly where it joins the fuel rail.

Engine starts rough but when warm settles down so is drive-able but sputters quite a bit.

fault code says left hand fuel trim is an issue ( code 64) so figuring the fuel leak is the problem. Any comments?

Also a noticeable vaccuum hissing/sucking noise is present on engine start up. It dissipates as engine gets warmer but can still be heard.

QUESTION Would a fuel leak as described above cause such a vacuum hiss or should I be doing some more troubleshooting?

 

[Lex]

no turbo or scharge. Fuel injection rubber fuel hose that connects to the passenger side fuel rail is leaking slioghtly where it joins the fuel rail.

Engine starts rough but when warm settles down so is drive-able but sputters quite a bit.

fault code says left hand fuel trim is an issue ( code 64) so figuring the fuel leak is the problem. Any comments?

Also a noticeable vaccuum hissing/sucking noise is present on engine start up. It dissipates as engine gets warmer but can still be heard.

QUESTION Would a fuel leak as described above cause such a vacuum hiss or should I be doing some more troubleshooting?

Fix the problems as you find them? It maybe a part of the problem, may not either. Fix the first one, if more problems, you'll find out?