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Def Junkie



Member Since: 30 Dec 2013
Location: Somewhere in Paradise
Posts: 79
A hard to describe problem
My 2.4 from recently (after the service) has been intermittently stalling mainly when accelerating. It is extremely random and therefore very difficult to simulate. However each time it has happened when I'm accelerating hard (like to overtake). The engine kind of skips a beat and then the accelerator does not respond but it is not a jarring halt and the momentum makes it roll on but the moment it comes to a stop, the ignition lights come on. But it re starts immediately and runs normal until it happens again. Sometimes this happens 2 or3 times a day and some days not even once. I'm completely baffled. I will be taking it in for a check but when I explained this over the phone to the workshop they seemed equally baffled.
If any of you have experienced similar or can at least let me know what to check, that would give the workshop a headstart.
Many tks in advance. Tim
Post #803477 25th Nov 2019 10:20am
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Marks Landy



Member Since: 09 Feb 2015
Location: Cheshire
Posts: 306
United Kingdom 1985 Defender 90 200 Tdi SW Java Black
Cheap fuel filter or air getting into the fuel system?
Post #803491 25th Nov 2019 1:16pm
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Stacey007



Member Since: 25 Sep 2015
Location: Cheshire
Posts: 3838
United Kingdom 
Do the dashboard lights go out when the engine cuts out (all dials zero?)


I had this, random cut out, no funny engine / juddering etc just cut out for a split second.


Fix was a new steering ignition barrel.


No fault logged as it was possible before it got to that...


Has worked fine since
Post #803496 25th Nov 2019 3:52pm
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BenB8man



Member Since: 22 Mar 2017
Location: Norfolk
Posts: 432
United Kingdom 2010 Defender 110 Puma 2.4 DCPU Stornoway Grey
I believe this could also be an issue with relay connections under the seat. A mate had this on a TDCI everytime he turned a sharp corner and I'm sure he said pinching up the socket connections solved it.
Post #803512 25th Nov 2019 6:24pm
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Def Junkie



Member Since: 30 Dec 2013
Location: Somewhere in Paradise
Posts: 79
Stacey007 wrote:
Do the dashboard lights go out when the engine cuts out (all dials zero?)


I had this, random cut out, no funny engine / juddering etc just cut out for a split second.


Fix was a new steering ignition barrel.


No fault logged as it was possible before it got to that...


Has worked fine since


The dashboard lights stay on and even the dials don't go to zero. However when the vehicle comes to a standstill then the ignition lights (the pre start mode red lights) come on. And she comes to life immediately when i re start the engine.
Post #803789 27th Nov 2019 12:35pm
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Def Junkie



Member Since: 30 Dec 2013
Location: Somewhere in Paradise
Posts: 79
Marks Landy wrote:
Cheap fuel filter or air getting into the fuel system?


The fuel filter is original Land Rover. Will need to check if air gets in.
Post #803790 27th Nov 2019 12:36pm
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geostrategist



Member Since: 25 Apr 2019
Location: UK
Posts: 60
United Kingdom 2008 Defender 110 Puma 2.4 CSW Tonga Green
I’m having a similar issue, but dropping through idle to stall instead.

I’ll watch with interest how yours develops!


https://www.defender2.net/forum/topic69868.html
Post #803925 28th Nov 2019 11:17am
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Marks Landy



Member Since: 09 Feb 2015
Location: Cheshire
Posts: 306
United Kingdom 1985 Defender 90 200 Tdi SW Java Black
Have you found any water in the fuel ?
Post #803929 28th Nov 2019 11:34am
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foggydave



Member Since: 29 Nov 2012
Location: Midlands
Posts: 263
United Kingdom 2014 Defender 110 Puma 2.2 USW Bonatti Grey
Could this be the VCV valve?
Post #804461 2nd Dec 2019 5:18pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17799
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
^^^ Very possibly, classic VCV symptoms.
Post #804475 2nd Dec 2019 6:59pm
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Defender13



Member Since: 19 Dec 2016
Location: Adelaide
Posts: 7
Australia 2013 Defender 110 Puma 2.2 SW Corris Grey
maybe some of these fuel delivery issues
Have a look at this, maybe it will help to assess the situation. As you have the 2.4 Puma, you do not have the diesel delivery pump insode of the fuel tank but directly on your common rail delivery pump:



Hopefully it helps.
Post #804679 4th Dec 2019 3:03am
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Def Junkie



Member Since: 30 Dec 2013
Location: Somewhere in Paradise
Posts: 79
So it finally turned out that my problem was caused by a faulty common Rail pump which was replaced and I have had no further instances of the engine cutting out on me.
Post #814624 11th Feb 2020 4:31pm
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discomog



Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 2539
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Santorini Black
Thanks Def Junkie, it's always good to know the causes of these spurious problems Defender 90XS SW
Mini Countryman Cooper S
Morgan Plus 8
Post #814625 11th Feb 2020 4:41pm
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windy81



Member Since: 14 Mar 2018
Location: North Wales
Posts: 311
Wales 1992 Defender 90 200 Tdi HT Firenze Red
ouch !
Post #814635 11th Feb 2020 5:39pm
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Marks Landy



Member Since: 09 Feb 2015
Location: Cheshire
Posts: 306
United Kingdom 1985 Defender 90 200 Tdi SW Java Black
Tricky to replace??
Post #814647 11th Feb 2020 7:12pm
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