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strang



Member Since: 16 May 2012
Location: Happy Valley
Posts: 1380
United Kingdom 2009 Defender 90 Puma 2.4 XS CSW Galway Green
Stuttering/missing?
I should probably search for this - but not sure what it may be called.

Anyway, for the past couple of days, when driving under power, every now and again, the engine in my 2.4 Puma feels like it just misses? there is a slight, but noticable drop off in power, only very brief, but noticible all the same.

Any ideas what it is likely to be please? Fuel issues/pump, filters, injectors.....

Its due a service next month - only done c15,000 miles and its in for its 4 year service. Maybe its lack of use? Euro-Leafing to infinity and beyond.....
Post #274225 16th Oct 2013 11:47am
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And1145



Member Since: 04 Sep 2013
Location: Howden
Posts: 30
United Kingdom 2011 Defender 110 Puma 2.4 CSW Buckingham Blue
Not much help but mine does this also! 3rd gear seems terrible some times, spluttering and un responsive, flat spots everywhere. I thought it was all defenders that did this, my TD5 did this also !!! No fault codes or limp mode either.

I hope someone has a miracle cure ! ,
Post #274317 16th Oct 2013 6:37pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6295
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
probably not the same but having just read 110seb's post about fuel pressure relief valve.........
Post #274366 16th Oct 2013 7:56pm
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Lou Sparts



Member Since: 15 Apr 2012
Location: Kent
Posts: 1501
United Kingdom 2005 Defender 90 Td5 XS CSW Zambezi Silver
Have you tried unplugging the MAF sensor and driving it my Td5 would sometimes be unresponsive especially when cold if i unplugged the MAF it was like a different car.
Purchased a new MAF from BAS (very quick delivery) and problem solved.Got to be worth a try as it costs nothing. 2005 Td5 90 XS

Steve
Post #274383 16th Oct 2013 8:22pm
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smb



Member Since: 15 Jan 2013
Location: Cheshire
Posts: 1232
United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Santorini Black
are there particular times it does it? I have noticed slight 'missing a beat' at certain revs/speed/gear.
Post #274396 16th Oct 2013 8:54pm
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strang



Member Since: 16 May 2012
Location: Happy Valley
Posts: 1380
United Kingdom 2009 Defender 90 Puma 2.4 XS CSW Galway Green
Well I first noticed it whilst blasting along the M621 into Leeds the other week, pushing 80+ mph - is the engine governed at top speed? Euro-Leafing to infinity and beyond.....
Post #275666 21st Oct 2013 8:05pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5642
2006 Defender 110 Td5 USW Zermatt Silver
Yes restricted to 84mph. Think that could be your answer.

Andy
Post #275673 21st Oct 2013 8:13pm
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WelshGas



Member Since: 01 Oct 2010
Location: Vale of Glamorgan
Posts: 935
Wales 2010 Defender 90 Puma 2.4 XS CSW Santorini Black
Top speed on the 2.4 is governed to 82mph, unless of course it has been remapped and the speed limiter set to another speed or disabled .. When you reach that speed you loose all power and only get it back when the speed drops back. Thumbs Up LANDYWATCH

Neighbourhood Watch for Land Rover Owners

http://www.landywatch.co.uk/smf2/index.php
Post #275676 21st Oct 2013 8:15pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610
United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
If it is unmapped and feels like a 'pulsing' it is the limiter. If mapped (as mine was and still is) mine was down to overboosting it felt almost like a momentary fuel starvation and then it would pick up again. Cured with the latest BAS map thankfully. If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #275677 21st Oct 2013 8:17pm
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strang



Member Since: 16 May 2012
Location: Happy Valley
Posts: 1380
United Kingdom 2009 Defender 90 Puma 2.4 XS CSW Galway Green
Ahh - that might explain it then, thanks for the replies. Euro-Leafing to infinity and beyond.....
Post #275788 22nd Oct 2013 11:29am
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mick



Member Since: 08 Feb 2010
Location: Yorkshire
Posts: 2109
England 2010 Defender 130 Puma 2.4 HCPU Rimini Red
Mine does it a bit pulls like a train to 2000 rpm then can flatten and run rough Confused
Post #275932 22nd Oct 2013 9:01pm
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Phil VM2.5



Member Since: 28 Mar 2012
Location: Limelette
Posts: 196
Belgium 2012 Defender 110 Puma 2.2 SW Keswick Green
hello,
do not know if I am talking of the same ...
one week ago , going to refill from home to the station, about 10km, I was afraid to be without fuel because, some "noticable drop off in power, only very brief, but noticible all the same " ...

this on gentle throttle ...

finally, at the station, I did not refuel so much, so it was not a problem of lack of fuel.

I did notice it after

Phil current : defender 110 sw 2.2 puma 2012 and 230.000km today and
again my Range Rover VM2.5 engine from 1992 and 528.000km today.

One ten 1988 to 1992
1987 BMW GS80
One Ten from 1984 to 1987
One Ten from 1983 to 1984
Serie 3 109 from 1980 to 1983
from 1974 Jeep CJ3B and CJ6
Post #275989 23rd Oct 2013 9:36am
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strang



Member Since: 16 May 2012
Location: Happy Valley
Posts: 1380
United Kingdom 2009 Defender 90 Puma 2.4 XS CSW Galway Green
I had over half a tank of Diesel on board at the time Phil. Euro-Leafing to infinity and beyond.....
Post #276004 23rd Oct 2013 11:37am
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