new fuel pump

Hi there

I have put a new fuel pump on my 2003 freelander (the one under the rear wheelarch) car runs great again and revs to the redline......the pump is very noisey but when i open the bleed plug by the pump it quietens the pump down but when i tighten it up agsin the pump goes noisey which suggests to me there is air in the system somewhere but i dont know how to sort.....if the pump is full of fuel it should be quiet is that right? is the pump supposed to run all the time?

Cheers
mark g

Genuine or pump or cheaper after market one?........the cheap ones are known to be noisey and unreliable.

As rimmer say's . . . . .and no they will run like this [Ming test] with ignition on [dont start engine] pump should run for tween 10- 30 seconds and stop , if it keeps running then its A = FUEL LEAK B= HIGH FUEL PRESSURE SENSOR FOOKED C= FUEL PUMP RELAY JAMMED [OR ELECTRICAL FAULT .NOT FORGETING . . . . .hope this helps

Hi thete

genuine land rover one and a filter from europarts

cheers

If its the pierburg one then it should be quiet.
Make sure all the connectors are tight onto the pump and filter......the push fit connectors make a click when connected correctly........else you may have a duff pump.

Ok

But why does the pump go quiet when i open the bleed screw on the pot next to the pump then go loud again when i tighten it up?

to me there is an airlock that needs shifting some how

done a sixty mile round trip today down the motorway and back and it drives better than it has done in ages.....

mmmmmmmmmm puzzling

mark g

Oh sorry

what i should have said was that it takes about 60 seconds to stop once the ignition is on but not the engine

cheers