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Home > Puma (Tdci) > 2.4 TDCI stuttering at 65mph
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8318
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Topvaruk wrote:
Thanks for the reply JST


Used to be fine all the way to the speed limiter around 85mph

Noticed last year it had a few hiccups then it would pass.

Now it won’t go beyond about 65, noticed this yesterday trying to pass another car on a dual carriageway ..... just refused, nearly got to 70 after about a mile of trying. Really massive stuttering like an old V8. Thought it could be the throttle pedal but the nanocom seems to show it working fine.

The frustration is that through the gears and upto 65 it goes really well, smooth idle, turbo running up nicely. Can’t see anything obvious via the nanocom other than at 65 the fuel rail pressure is fluctuating by about 20MPA .... it’s liek someone is lifting my foot of the pedal.


any smoke when trying hard?

does it do it every time?

turbo hose delaminating? Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #754160 26th Jan 2019 10:03pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8318
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
air filter ok? Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #754161 26th Jan 2019 10:03pm
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Topvaruk



Member Since: 25 Apr 2018
Location: bratislava
Posts: 69
Slovakia 2008 Defender 110 Puma 2.4 CSW Alaska White
Try to answer all replies in one go, No smoke .... new hoses, the idle was always fine it’s the high speed driving that’s the problem .... like something is holding it back
Post #754162 26th Jan 2019 10:07pm
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pj2106



Member Since: 20 Dec 2012
Location: Huntingdon AKA The Shire
Posts: 1500
United Kingdom 2008 Defender 110 Puma 2.4 USW Stornoway Grey
Mine did exactly this andcheckedwater level was way low topped it up and been fine since 2008 110 2.4 XS Utility (Hagrid)
2002 90 TD5 Hardtop (Sully) Sold
1998 300TDi D1 (Billy) Sold
Post #754187 26th Jan 2019 11:23pm
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Topvaruk



Member Since: 25 Apr 2018
Location: bratislava
Posts: 69
Slovakia 2008 Defender 110 Puma 2.4 CSW Alaska White
Thanks PJ but already checked that.

According to nanocom engine temp is low 80s which was a surprise even when gunning it. Have ordered a replacement CHT sensor as it’s cheap ,... I understand this drives both the gauge and the info to the ECU. Could be giving duff readings.
Post #754216 27th Jan 2019 9:06am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8318
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
mine runs around 80 deg this times of year. 87 summer under normal driving Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #754235 27th Jan 2019 10:07am
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Big Harold



Member Since: 09 Jul 2018
Location: nsw
Posts: 71
Australia 2015 Defender 130 Puma 2.2 HCPU Alpine White
Fit a genuine fuel filter.
Mark
Post #754662 28th Jan 2019 11:09pm
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Topvaruk



Member Since: 25 Apr 2018
Location: bratislava
Posts: 69
Slovakia 2008 Defender 110 Puma 2.4 CSW Alaska White
Hi mark

Has genuine fuel filter - at the last service at a LR main dealer
Post #755889 3rd Feb 2019 12:31pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8318
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
did you resolve this? Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #761160 28th Feb 2019 1:37pm
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Maxime



Member Since: 02 Nov 2018
Location: Trier
Posts: 10
Germany 2008 Defender 90 Puma 2.4 SW Santorini Black
I had similar issues at the same speed. It felt like a first speed limiter. I got rid of it after removing the snorkel Shocked

Best

Maxime
Post #761161 28th Feb 2019 1:40pm
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Topvaruk



Member Since: 25 Apr 2018
Location: bratislava
Posts: 69
Slovakia 2008 Defender 110 Puma 2.4 CSW Alaska White
Many thanks for the reply

Are spending a lot of money changing all the sensors etc .... found out that the ECU has been updated with RHD software rather than LHD, somehow this had introduced a speed limit function of 100kph.

Rather than pay my local stealer again and wait 12 weeks for a diagnostics slot (yes 12 weeks) ..... to put it right just had a remap flashed onto it. Now goes like a rocket and has no limiter what so ever.


Thanks all of you for your help.
Post #761169 28th Feb 2019 2:08pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6346
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
I don't drive that quickly but I seem to recall rev's hunting at tick over was resolved with a new MAF sensor for me.

good luck.
Post #761181 28th Feb 2019 2:53pm
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