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dancerdave

Member Since: 14 Mar 2014
Location: N Ireland
Posts: 80

2000 Defender 90 Td5 Exclusive HT Santorini Black

noisy fuel pump

I had all the symptoms of a failed injector loom ( lumpy running, oil at the ecu, missing at high revs) and changed it yesterday for a new one and engine running much better.

Then tonight while driving I started to hear a high pitched buzzing noise.

On checking, its coming from the fuel tank so do I need a new fuel pump? Is it about to expire? Is it just a coincidence I changed the loom yesterday.
The engines still running well.

6th Jun 2014 11:37pm

mk1collector

Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

Could be sucking air in through the FPR or injector seals and washers

7th Jun 2014 12:08am

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black

If it is the puma, as you know it's submerged in the tank. Quite a few td5'ers have cut an access panel in the boot floor saves dropping the tank

7th Jun 2014 7:15am

dancerdave

Member Since: 14 Mar 2014
Location: N Ireland
Posts: 80

I'm hoping it's injector seals as that would be much cheaper. Is there any guides to show how it's done?

7th Jun 2014 10:10am

SiWhite

Member Since: 19 Jan 2010
Location: North Hampshire
Posts: 455

2013 Defender 110 Puma 2.4 USW Stornoway Grey

Unlikely to be injector seals IMHO - but they are easy enough to do if you need to.

I had this problem on a previous vehicle - I changed the fuel pump at considerable expense but the issue remained. I then changed the fuel filter and it was sorted. Lesson - change the cheap and easy stuff first, even if they are not the most probable cause! My blog - www.anacreinhampshire.blogspot.co.uk

110 TD5 BuildHERE - sold!
110 Tdci Build HERE - sold!
Passat Alltrack - 4x4, auto, 45mpg, gloriously comfortable - but not a Defender!

7th Jun 2014 11:34am

dancerdave

Member Since: 14 Mar 2014
Location: N Ireland
Posts: 80

Apart from the noise am I going to cause any more damage by continuing to drive until I get it fixed. Engine seems to be running fine.

7th Jun 2014 11:52am

Laurie

Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

2005 Defender 90 Td5 XS CSW Bonatti Grey

It's perfectly OK to drive with a noisy pump.
Won't do any harm and is unlikely to breakdown.
If it is injector seals they will be prone to breakdowns.

7th Jun 2014 11:56am

dancerdave

Member Since: 14 Mar 2014
Location: N Ireland
Posts: 80

Thanks. I'll try the injector seals and fuel filter first and let you know how I get on.

7th Jun 2014 12:00pm

dancerdave

Member Since: 14 Mar 2014
Location: N Ireland
Posts: 80

it was the fuel filter

so cheap fix

12th Jun 2014 8:47pm

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