Can someone tell me if the fuel pump runs continuously or intermittently and wether you're supposed to here it or not. Think mine could be on its way out and the cause of engine stalling - I can hear it and it sounds like a 'wood router in the distance' going on and off  Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

I cant say that I have ever heard mine.
Hows your fuel filter?
I know when I bought my FF, one of the first things I did was change the filter......it was really blocked and I was horrified at the gunk that came out of it.

the Fuel filter is also the pressure regulator, if it's blocked up it'll cause fuel starvation, and it'll also put too much back pressure on the pump and eventually kill that.

Well I changed the fuel filter as suggested by RR P38 and then took it for a blast - and so far so good. I can still hear the pump switching on and off, but maybe that is what it does - build up the pressure and then backs off!! Further investigation needed.
Thanks for the help RR P38 & Zirconblue  Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Good stuff....fingers crossed.
As luck would have it I think my filter needs changing again after 13,000km.
I am getting what seems to be fuel starvation and poor performance, no faults or bongs active.
Did you get any sediment out of your filter?

Didn't get anything out of the filter. It had obviously been changed before by previous owner because one of the collets was broken and replaced with clips and pipe. However, it had another 'moment' on Thursday so not so sure I've cured it!!
Can still hear the pump starting and stopping and still not sure if it's that!!  Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Get fuel rail pressure tested next. I think you are looking for 3.5bar.

Ok will do. Hopefully I can do that with my iid tool  Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

I dont see any sensor for fuel rail pressure in the w/s manual.

Fuel Injectors
An electromagnetic, top feed fuel injector is installed in each cylinder inlet tract of the inlet manifolds. A common fuel rail supplies the injectors with fuel from a returnless fuel delivery system. The fuel in the fuel rail is maintained at 3.5 bar above inlet manifold pressure by a pressure regulator incorporated into the fuel filter. A Schraeder valve is installed in the fuel rail, to the rear of injector No. 7, to enable the fuel pressure to be checked.

The reading here is interesting.
It makes it sound like the relay is prone to failure.
Are you getting any fault codes along the lines mentioned in this;

The fuel cut-off function can only be reset by using TestBook/T4.
The ECM monitors the state of the wiring to the coil winding within the fuel pump relay. The ECM will store relevant fault codes if the ECM detects a problem. The ECM is not able to assess the state of the fuel pump circuit because it is isolated by the function of the relay. However, if the fuel pump circuit fails, or the pump fails to deliver sufficient fuel (while the fuel level is above the minimum level), the ECM will store adaptive faults as it tries to increase the air/fuel ratio by increasing the pulse width of the injectors.
18-2-30 DESCRIPTION AND OPERATION
ENGINE MANAGEMENT SYSTEM – V8
Failure of the fuel pump relay will result in the engine failing to start. If the fuel pump fails while the engine is running, the symptoms will be engine hesitation and engine misfire. These symptoms will worsen progressively until the engine stops. The ECM will store several fault codes under this condition.

If your pump is on the blink, then there is a WIKI to show you the steps to change it. This v8 model does suffer from a tired pump. And my symptoms were hardly any power, and OK for a bit soon after. Then sometimes no starting etc. Ie low fuel pressure etc. You might want to measure the actual pressure via a cheap tool Via eBay etc. it hooks onto the engine fuel rail.

All sorted! Ordered a new pump and it arrived in less than 24 hours. Using the 'wiki' info was able to fit it without too much bother - Result!

Thanks All Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr