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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8272
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
losing power after heavy fuel demand
just bought (today) a 07 Hardtop 2.4 Puma. 60k miles. totally std engine.

it goes well most of the time, for info no fault codes shown.

However after a run down the motorway at 70mph after about 10mins it loses power, pushing acc does nothing, speed and engine revs drop slowly. i changed down as speed went down, after approx 30s in 4th by now at 45mph ish is recovered and gave me power back. back to 70mph and then after 3mins or so it did it again. i came off the motorway then.

If you drive slower it takes longer for the symptons to occur. ie at 60mph 15mins or so

there is no black smoke at point of power loss (in fact no smoke at all)

so i am assuming its a fuel supply related issue?

i do have a hunch on something but would welcome any suggestions as to cause and possible solution. Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #471415 10th Nov 2015 9:59pm
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Scoobeenut



Member Since: 04 Mar 2015
Location: West London
Posts: 310
United Kingdom 2010 Defender 90 Puma 2.4 SW Santorini Black
Possible vcv? I beleive they are prone to failure and don't show any fault codes.
Post #471454 10th Nov 2015 11:25pm
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2343
United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
Have you tried running it without the fuel cap James ? Does sound like the fuel supply can't keep up with demand.
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #471481 11th Nov 2015 1:55am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8272
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
^^^ is my thoughts too. not looked yet though. Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #471811 11th Nov 2015 11:32pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8272
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
dropped the tank today, someone had fitted the rear cage bolts in such a way to limited fuel and air supplies Confused

pipes changed.

refitting the tank was fun Big Cry Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #472108 13th Nov 2015 12:06am
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Shane



Member Since: 27 Jul 2016
Location: Doncaster
Posts: 4
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Bonatti Grey
I have the same problem and wanted to know if you've resolved it yet.

regards Shane
Post #552094 29th Jul 2016 9:59am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8272
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Hi Shane, yes it was a blocked breather for the fuel tank. Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #552148 29th Jul 2016 1:38pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20839
United Kingdom 
Fuel filter needing changing can degrade performance too.
As far as I'm aware, never changed it myself but they just need diesel priming then fitting.
Post #552180 29th Jul 2016 4:18pm
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spudfan



Member Since: 10 Sep 2007
Location: Co Donegal
Posts: 4806
Ireland 
I just fill the new filter with diesel, screw it on and turn on the engine. Never needed primed. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali
2008 110 2.4 tdci csw-Zulu
2011 110 2.4 tdci csw-Masai
Post #552281 29th Jul 2016 10:55pm
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jonesie



Member Since: 25 Sep 2011
Location: Petworth
Posts: 231
United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Corris Grey
As spud said, fill new filter with diesel and no need to prime system.
Running it at a fast idle for a couple of mins also helps pull it through.
Jonesie enjoying the sun before it blows a hoolie tmrw Series I 86" Petrol orig side valve (daily hack)
VW Tiguan ( bit bland but very comfy )
Porsche 997.2
790 Bonnie
Post #554105 6th Aug 2016 6:25pm
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