Honda Car Forum

What is making the noise when you turn the key until the
picture on the dashboard (of fuel pump) goes off?

I'm sure it is not the fuel pump making the noise because
fuel pump is located underneath the rear seats, and the
noise is comming somewhere around fuel pressure regulator
valve.

Is that regulator making the noise?

Thanks. Then it's logical that sound is of less intensity in the morning
when
there is no fuel presure and it has to be generated.


"Sean Dinh" <seannydinh@znet.com> wrote in message
news:3F22B4F4.7DA99CFF@znet.com...
> The pump pressurize the fuel system. The pressure regulator has to open
> to let the fuel to flow, to reduce the pressure. That's where the sound
> come from.
>
> Mickey wrote:
>
> > What is making the noise when you turn the key until the
> > picture on the dashboard (of fuel pump) goes off?
> >
> > I'm sure it is not the fuel pump making the noise because
> > fuel pump is located underneath the rear seats, and the
> > noise is comming somewhere around fuel pressure regulator
> > valve.
> >
> > Is that regulator making the noise?
>