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Thread: Signum 3.0 power loss

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    Default Signum 3.0 power loss

    Looking for some help as on way home car losses power.
    Its a auto and when i plant it the power comes then backs of
    then returns.
    Some times it revs but goes no where then it just takes off like
    someone has let the clutch out.
    Any help will be great if anyone has had similar problems.

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    Regular Member m8internet's Avatar
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    What are the idle revs like?

    During normal driving at constant speed -
    Does it feel more like someone is applying the brakes and then releasing them?

    During acceleration -
    Does it feel like the same as above and then there is a sudden surge?

    Are the above two symptoms consistent or erratic?

    What mileage is your Y30DT on?
    What are the last two services?

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    On idle it jumps up and down the revs slightly but as you described
    it gets a sudden surge goes then slows then surge again while building revs.
    Last service was only last month at vx but they only said it needed a small service.
    Cars just turned 108 k ????

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    Also drives fine at speed but yest spanner light came on but i stopped
    and added fuel but light was off after restart.
    Its only happens some times then its ok others.???

  5. #5
    Regular Member m8internet's Avatar
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    As the idle revs are erratic you need to have a diagnostic performed to determine where the issue lies
    It is probably either the injectors or the fuel pump itself

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