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Any Ideas On This Noise?

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Iceman08

Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

2010 Discovery 4 3.0 TDV6 HSE Auto Santorini Black

Any Ideas On This Noise?

When I turn the ignition on in the morning but don't crank the engine.

Fuel pump possibly?

25th Jul 2018 8:49 pm

WW88

Member Since: 19 Aug 2017
Location: Northants
Posts: 250

2007 Discovery 3 TDV6 HSE Auto Stornoway Grey

Is it the trap door opening?

25th Jul 2018 9:01 pm

Gareth
Site Moderator

Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26748

Fuel pump trying to escape!

25th Jul 2018 10:49 pm

Iceman08

Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

Is it a case for a new fuel pump?

Maybe not the trap door, maybe the missus trying to open her purse!

25th Jul 2018 11:00 pm

Iceman08

Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

I forgot to mention that this noise is intermittent, some mornings it does it, others it’s silent.

I’m guessing it’s the LPFP and not the HPFP or do I have that very wrong?!

27th Jul 2018 7:03 am

Gareth
Site Moderator

Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26748

Low pressure pump is in the tank, hp pump is on the engine.

That noise sounds like the lp tank pump. Intermittent, because it’s probably a worn bearing in the motor.

27th Jul 2018 7:11 am

Iceman08

Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

Thanks Gareth

Do you know how easy a fix it is?

And also is it one of those things that if it does I’ll break down?!

27th Jul 2018 8:00 am

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4889

2009 Discovery 3 TDV6 Commercial XS Auto Stornoway Grey

Fuel tank has to be dropped to access the llpfp. If its a failing pump you definitely will breakdown sooner or later. I had a similar issue a few years ago which turned out to be gunge blocking the fuel entry to the pump, caused by poor quality diesel.

27th Jul 2018 2:00 pm

Iceman08

Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

Thanks for the info

Funny you should say that.......the noise has only started since I've been using fuel out of plastic drums that my father in law has given me

29th Jul 2018 1:53 pm

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4889

Oh dear

The D3 I looked at had what can only be described as black silicone sealant totally covering the lower part of the fuel pump. Think Alien and small creature, and you get the image. It seems the singing noise was caused by the pump trying to pull the fuel through whatever gaps were left in the gunge!

The pump once cleaned was perfect, but a new one was fitted anyway as the tank was down.

29th Jul 2018 2:31 pm

Iceman08

Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

Sounds like I'll be replacing my pump then

Is it a time consuming job? And any ideas on pump cost?

29th Jul 2018 3:30 pm

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4889

Not so much time consuming as fiddly and can be messy if you don't prep! Have a look here https://www.island-4x4.co.uk/discovery-fue...mp;sort=3a
Pump type depends on whether a Webasto is fitted or not. Change fuel filter too! Genuine only!!

29th Jul 2018 5:16 pm

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