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Nick13



Member Since: 18 Oct 2021
Location: Kilkenny
Posts: 13
Ireland 2007 Defender 90 Puma 2.4 HT Zermatt Silver
2.4 puma engine cutting out!??? Please help!!
Hi all,
Thank you for having me around!!
I really need some help with my defender 2.4 puma , she is having a very bad case of cutting out while driving so far this is what has been done , changed and reconditioned!
.maf sensors
.css
.cam.s
4 injectors
.fuel filter
.relays.
.starter motor
.stop light switches
The problem happens when the engine is warm and when the accelerator is pressed more than halfway in all the gears!!
Nothing is coming up when plugged in !! I am desperate at this stage !๐Ÿ˜ญ๐Ÿ˜ญ
Thank you for your help!
Nick13.
Post #926173 18th Oct 2021 10:13am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20325
United Kingdom 
Likely to be the VCV on the fuel pump with no DTCโ€™s being flagged up on the OBD system.
PF Jones have them, you can change one yourself.

This is purely advice, I cannot guarantee it is that. Do you know how old the original is? โญ๏ธโญ๏ธGod Bless the USA ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡บ๐Ÿ‡ธ โญ๏ธโญ๏ธ
Post #926176 18th Oct 2021 10:36am
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Nick13



Member Since: 18 Oct 2021
Location: Kilkenny
Posts: 13
Ireland 2007 Defender 90 Puma 2.4 HT Zermatt Silver
Thank you custom90steve for the quick reply, to be honest I couldn't tell you ?? I discovered, after 2 garages that a lot of the work that was meant to be done were actually not done!!! Anyway !! I will look into it !
V.c.v?
Post #926179 18th Oct 2021 10:43am
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Nick13



Member Since: 18 Oct 2021
Location: Kilkenny
Posts: 13
Ireland 2007 Defender 90 Puma 2.4 HT Zermatt Silver
V.c.v= volume control valve!! ๐Ÿ‘๐Ÿ‘๐Ÿ˜
Post #926181 18th Oct 2021 10:48am
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Nick13



Member Since: 18 Oct 2021
Location: Kilkenny
Posts: 13
Ireland 2007 Defender 90 Puma 2.4 HT Zermatt Silver
I forgot to mention that when the injectors were put back , the car behave a lot smoother than usual for about 2 days and then the problem came back!!???
Post #926182 18th Oct 2021 10:57am
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Nick13



Member Since: 18 Oct 2021
Location: Kilkenny
Posts: 13
Ireland 2007 Defender 90 Puma 2.4 HT Zermatt Silver
How do you check if the vcv is faulty?
Thanks!
Post #926197 18th Oct 2021 12:35pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1997
United Kingdom 
If you do end up replacing the VCV here is a little how to from bell auto services https://bellautoservices.co.uk/store/defen...our-valve/

From posts on here you DO NOT need to do points 7 and 8 I.e

7. Using diagnostic system carry out the pump learn procedure.
8. Using diagnostic system carry out the pilot correction procedure.


So a relatively easy procedure, when it first starts after replacement it will not run smooth but take it for a run and all should settle down. Just make sure all is very clean before removal and on fitting new VcV
Post #926198 18th Oct 2021 12:39pm
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shropshiredefender



Member Since: 05 Jun 2017
Location: Shropshire
Posts: 834
England 2011 Defender 110 Puma 2.4 USW Santorini Black
Re: 2.4 puma engine cutting out!??? Please help!!
Nick13 wrote:
Hi all,
Thank you for having me around!!
I really need some help with my defender 2.4 puma , she is having a very bad case of cutting out while driving so far this is what has been done , changed and reconditioned!
.maf sensors
.css
.cam.s
4 injectors
.fuel filter
.relays.
.starter motor
.stop light switches
The problem happens when the engine is warm and when the accelerator is pressed more than halfway in all the gears!!
Nothing is coming up when plugged in !! I am desperate at this stage !๐Ÿ˜ญ๐Ÿ˜ญ
Thank you for your help!
Nick13.

Simple stuff first - is the cooling system topped up and functioning properly with no leaks?
The cylinder head temp. sensor will cut power if it senses overheating - this will happen when the
temp. is shown as normal and will record no faults.
Hope it's this simple Thumbs Up Just because you're offended doesn't mean you're right.
Post #926199 18th Oct 2021 12:55pm
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Nick13



Member Since: 18 Oct 2021
Location: Kilkenny
Posts: 13
Ireland 2007 Defender 90 Puma 2.4 HT Zermatt Silver
Hope it is too!!๐Ÿ˜๐Ÿ˜‰ , thanks ianh for the instructions!๐Ÿ‘๐Ÿ‘๐Ÿ‘
Post #926201 18th Oct 2021 1:00pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17361
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Nick13 wrote:
How do you check if the vcv is faulty?
Thanks!


Fit a new one of reputable make. It is impossible to test a VCV, and all you can do is replace it and see if it solves the problem.

VCV faults tend not to produce any DTCs and consequently the main indication of a VCV fault is poor running with no DTCs. A faulty VCV can produce a massive range of symptoms from intermittent misfire, stalling on tickover, poor acceleration, and so on.
Post #926206 18th Oct 2021 1:34pm
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Nick13



Member Since: 18 Oct 2021
Location: Kilkenny
Posts: 13
Ireland 2007 Defender 90 Puma 2.4 HT Zermatt Silver
Thanks blackwolf ๐Ÿ‘
Post #926208 18th Oct 2021 1:41pm
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Eduardo



Member Since: 28 Aug 2008
Location: Regiรณn Metropolitana
Posts: 2110
Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey
VCV are like the butler in the mystery novels.
Always be suspicious of him.... Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge
Post #926218 18th Oct 2021 3:51pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20325
United Kingdom 
I wonder if the injectors were programmed when installed?

Yes the VCV can often be seen as a cure all, but isnโ€™t always the case but seems to be cropping up a lot lately.
That and grounding issues with electrical problems. โญ๏ธโญ๏ธGod Bless the USA ๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿ‡บ๐Ÿ‡ธ โญ๏ธโญ๏ธ
Post #926249 18th Oct 2021 6:29pm
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Fabio



Member Since: 05 Aug 2011
Location: Somerset
Posts: 589
Portugal 2011 Defender 110 Puma 2.4 XS CSW Santorini Black
Mine did this too,
I changed the VCV valve and it has been fine ever since.
The VCV was only 18months old when I had to change it again.

Fabio
Post #926304 19th Oct 2021 4:52am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17361
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
custom90steve wrote:
... the VCV ... seems to be cropping up a lot lately. ...


Something I have noticed over the years on this forum is that particular questions and particular faults crop up in waves several years apart. I suspect that this is connected with the turnover of vehicle ownership, with new owners joining the forum and finding the faults that we "old lags" have dealt with in the past.

Unless VCVs have suddenly started getting COVID....
Post #926326 19th Oct 2021 8:39am
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