4.7 Ferrari / Maserati Engine | FerrariChat

4.7 Ferrari / Maserati Engine

Discussion in 'Technical Q&A' started by Kawasaki, Dec 11, 2019.

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  1. Kawasaki

    Kawasaki Rookie

    Dec 11, 2019
    1
    canada
    Full Name:
    Stephen Pillai
    Hi Guys, Im performing a fuel Pressure leak down test on my 2011 Maserati with the 4.7 Ferrari engine due to a gas smell in the engine oil.

    The fuel pressure gauge shows 50 psl when engine is started . Engine off, the fuel pressure drops from 44 psi to 34 psi in an one hour, and loses all pressure in 5 hours.

    Question
    What is the correct PSI this engine should read with the engine on & off ?
    Is it normal for the fuel system to bleed off that fast ?
    Would a faulty gas fill cap cause the fuel rail to lose pressure ?

    Thanks
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