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stigomery



Member Since: 10 May 2016
Location: Cambridge
Posts: 277
United Kingdom 2004 Defender 90 Td5 HT Belize Green
Fuel pump noise
Hi all,

The fuel pump on my '04 Td5 has started making quite a loud whine all the time. It used to make this whine for approx 30 seconds then drop to a barely audible hum whilst running but now it's constant and doesn't sound healthy. The Defender runs and drives fine with no loss of performance so I don't think it's injector.

Fuel filter was replaced 3k ago.

Any ideas or fault finding suggestions?

Thanks
Post #574259 29th Oct 2016 8:41pm
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cobra_mark



Member Since: 17 Feb 2015
Location: West Yorks
Posts: 213
United Kingdom 2000 Defender 90 300 Tdi SW Barolo Black
With my TD5 it turned out to be the pump, which was changed recently and all was well. I believe it is air entering the system so worth checking that first, with pipe work, then look att he pump.
Post #574261 29th Oct 2016 8:55pm
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039
Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
It's time to fill up. Twisted Evil Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #574279 29th Oct 2016 9:54pm
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stigomery



Member Since: 10 May 2016
Location: Cambridge
Posts: 277
United Kingdom 2004 Defender 90 Td5 HT Belize Green
OK, found out how to purge the system and the pump is now stopping my after 20 seconds or so as it used to, see video 1.
The bit at the bottom of the fuel filter tightened a turn or so so perhaps air was getting in there??
Now not sure if the running noise is louder than it used to be, does this sound correct? Video 2.

Video 1:
https://youtu.be/Jh1jW6HhRdg

Video 2:
https://youtu.be/NqMM-Pe8A5A
Post #574314 30th Oct 2016 8:56am
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gazman



Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652
United Kingdom 2003 Defender 90 Td5 HT Alpine White
if it does turn out to be the pump. I'd have the injector seals done at the same time as a replacement pump. When mine went it was full of black bits which was carbon from blow past from the copper injector seals. They could have caused another pump to fail if they had been left.

It might even be worth doing the injector seals anyway if they haven't been done for a while 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r
Post #574332 30th Oct 2016 10:54am
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