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trooper



Member Since: 11 Mar 2014
Location: west sussex
Posts: 101

United Kingdom 2002 Defender 90 Td5 HT Tamar Blue
TD5 FUEL PUMP PROBLEMS
The fuel pump in my TD5 90 started howling quite badly, so thinking possible failure was imminent I modified the rear floor to enable access without tank removal and the local land rover garage replaced the fuel pump with new OEM (not LR) unit. From the initial installation test drive and subsequent few weeks the new pump is howling loader than the original one. Can anyone please give me any pointers to the solution. Thanks in advance
Post #649867 12th Sep 2017 3:43pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1758

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
Have you run a bleed cycle? (Ignition on, quickly depress the throttle pedal 5+ times. EML light will flash and fuel pump will do things for a while)

How much fuel is in the tank? Mine starts getting noisy any time I drop below 1/8-1/4 of a tank.
Post #649875 12th Sep 2017 4:04pm
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trooper



Member Since: 11 Mar 2014
Location: west sussex
Posts: 101

United Kingdom 2002 Defender 90 Td5 HT Tamar Blue
Hi Miker,


Thanks for the reply, yes the LR garage did the check and I have just carried out the same, with no joy. The tank is now about half full, but is still doing it with a full tank.
Post #649878 12th Sep 2017 4:23pm
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gazman



Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652

United Kingdom 2003 Defender 90 Td5 HT Alpine White
Change the fuel filter. I didn't and destroyed a 2nd pump. The cause of the initial pump failing was carbon from blow by on the injector washers

My failure to do the filter pushed carbon into the new pump too. when I stripped both pumps down to see why they had failed to was obvious 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r
Post #649883 12th Sep 2017 4:50pm
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trooper



Member Since: 11 Mar 2014
Location: west sussex
Posts: 101

United Kingdom 2002 Defender 90 Td5 HT Tamar Blue
Thank you Gazman, that looks like a good pointer to the way forward,
Post #650011 13th Sep 2017 7:38am
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2158

United Kingdom 
Turn on the ignition (but don't start the engine) The fuel pump should whine for about 30 seconds, then stop.
lf it keeps whining then you have a fault somewhere, such as a faulty injector or an air leak.
Although the Land Rover will most often run in this state, it could damage the fuel pump.
Post #650141 13th Sep 2017 6:15pm
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mk1collector



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

England 2004 Defender 110 Td5 CSW Bonatti Grey
Id change the injector seals as it could be letting air into the system causing the noise Ray
My build thread
http://www.defender2.net/forum/topic17615.html
Post #650162 13th Sep 2017 7:59pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2158

United Kingdom 
The test that l suggested above would give an indication of failed injector seals.
Post #650466 15th Sep 2017 2:33pm
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achuakh



Member Since: 12 Apr 2012
Location: Singapore
Posts: 157

Singapore 2002 Defender 90 Td5 SW Oslo Blue
My own experience is the "cheaper" pumps make more noise.

I have had the all makes one and it ran for over 7yrs and was way louder than the original one, nothing wrong but I swapped it since it was getting too loud for my liking again. I have an original one now and I can barely hear it.

So it doesn't matter until it stops running. From the land of the most expensive land rover defenders on planet earth. At �125k for a XS 110 csw and you get to own it only for 10yrs! Please find me a good reason to stay on this island.
Post #651183 19th Sep 2017 12:24am
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stigomery



Member Since: 10 May 2016
Location: Cambridge
Posts: 277

United Kingdom 2004 Defender 90 Td5 HT Belize Green
Mine started getting noisy about 8k miles ago and it still seems to be fine. In that time I've had a new head put on, 2 new fuel filters and tried various things... it's still going strong and I'm not going to change it but I do have a spare in the back on the off chance I get caught out one day.
Post #651191 19th Sep 2017 4:47am
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sherifsalem



Member Since: 02 Jan 2013
Location: Porto
Posts: 96

Portugal 2005 Defender 90 Td5 ST Java Black
Hi Gents

if you want to change the fuel pump of a td5 defender 90 , you can do it yourself below is a link to help out


https://thegippo.wordpress.com/2018/11/10/...fuel-pump/ Happy Travel
www.thegippo.wordpress.com
Post #741143 18th Nov 2018 7:43pm
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TJH1985



Member Since: 22 Aug 2016
Location: Midlands
Posts: 238

United Kingdom 
I have a Lucas OEM in mine and it’s nice and quiet...

When mine failed I cut it open to find that the brushes had worn out / contacts failed - however we also found what looked like diesel bug in the bottom of the tank so took the opportunity to jets wash & dry it out followed by a treatment and new filter with the new pump.

I’ve had it out again since as the breathers perished and stared to leak (recommend changing them) so while it was out I opened it back up and it’s still nice and clean Thumbs Up

Takes about 10 minutes to drop the tank from the underside 👍
Post #741168 18th Nov 2018 9:33pm
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