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Willfindlay



Member Since: 08 Mar 2021
Location: Yorkshire
Posts: 24
England 2009 Defender 90 Puma 2.4 PU Arles Blue
2.4 white smoke on start up
My 2009 2.4 has had quite a lot of white smoke on startup, but as soon as you set off it disappears and there is no smoke once the engine is warmed up. The engine never runs hot, and the coolant levels are all correct. I was wondering if anyone knows the reason for the smoke on startup. Thanks
Post #898292 14th Apr 2021 7:58pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20263
United Kingdom 
Is the idle stable when cold?
Post #898298 14th Apr 2021 8:13pm
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Willfindlay



Member Since: 08 Mar 2021
Location: Yorkshire
Posts: 24
England 2009 Defender 90 Puma 2.4 PU Arles Blue
No, it’s not great but as soon as you increase the revs then let it idle again it’s fine.
Post #898300 14th Apr 2021 8:17pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20263
United Kingdom 
Okay, do you find she pulls strongly in 6th or feels sluggish?

Also does the idle run smooth once up to temp after a run?

If it does, the it might be a good idea to change the VCV.

Also you may wish to run Millers Diesel additive too, I run this constantly and will help keep injectors cleaner and various other items.
Also having the MAF and MAP sensors with a proper spray cleaner may help too.

Issues when cold on first start are commonly akin to VCV issues, I recently changed mine and was well worth doing.
PFJones supply these.
You need no special tools and doesn’t need programming in either.

If yours is original as was mine, then it probably is due for a change.

This is a suggestion, and not guaranteed to be the culprit but may well solve the issue without spending too much money.

I would definitely recommend the additive first as this will give everything a clean through anyway including the VCV.
And is safe to use permanently and will run smoother, with a little more MPG and power.

Thumbs Up
Post #898307 14th Apr 2021 8:30pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7979
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
^^^ VCV i would also suggest. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #898308 14th Apr 2021 8:36pm
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Willfindlay



Member Since: 08 Mar 2021
Location: Yorkshire
Posts: 24
England 2009 Defender 90 Puma 2.4 PU Arles Blue
Yes, it pulls really well in all gears, and yes once upto temperature the idle is smooth. I’ll get some millers additive and try that and look into changing the vcv. Thanks for your help.
Post #898310 14th Apr 2021 8:39pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20263
United Kingdom 
Thumbs Up
Post #898313 14th Apr 2021 8:53pm
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mwestcrew



Member Since: 09 Dec 2019
Location: South Warwickshire
Posts: 245
United Kingdom 2011 Defender 130 Puma 2.4 HCPU Baltic Blue
I’d suggest one or more leaky injectors. Leak a little once engine not running as the fuel rail stays partly pressurised. When you start the engine it burns off the wet diesel in the cylinder. Often will feel like it’s misfiring just until the fuel is burnt off. 2011 130 Utility Body
2005 110 Van
Post #898317 14th Apr 2021 9:23pm
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bear100



Member Since: 22 Mar 2010
Location: South Wales
Posts: 1913
Wales 2010 Defender 110 Puma 2.4 USW Santorini Black
How are leaky injectors fixed? DIY job? 2016 Range Rover Autobiography 4.4 TDV8
2010 110 XS Utility 2.4TDCI
2010 Range Rover Sport TDV8 (gone)
2007 Discovery HSE TDV6 (gone)
1993 110 csw 200 tdi (gone)
1994 90 HT 300 tdi (gone)
1994 discovery 300tdi (gone)
90 hybrid 3.5 v8 (gone)
Range rover bobtail 3.5 v8 (gone)
Post #898323 14th Apr 2021 9:51pm
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Willfindlay



Member Since: 08 Mar 2021
Location: Yorkshire
Posts: 24
England 2009 Defender 90 Puma 2.4 PU Arles Blue
Custom 90 Steve

I’ve been looking at several vcm’s, and it says a pump learn procedure needs to be carried out with a diagnostics tool?
Post #898347 15th Apr 2021 6:44am
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Leamreject



Member Since: 19 Dec 2020
Location: Middle Earth - Leamington Spa
Posts: 969
Italy 2011 Defender 90 Puma 2.4 HT Fuji White
Youll probably find it’s worse on very cold days, but before you go spending lots of money try a diesel system additive.

Make sure you have no more than a quarter tank when you add it and get the engine nice and hot with a good half hour drive to flush things through.

This is also a good thing to do before taking your vehicle for MOT every year, a bit of a flush out may help on emissions testing. Ride like you stole it!!
If I’m not on a bike it’s because only a 4x4 will do…
2011 2.4 Puma 90 HT
Post #898350 15th Apr 2021 6:51am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7979
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
officially you need to do a learn after fitting a vcv, its better if you do do the learn but it will work fine without and sort itself out. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #898360 15th Apr 2021 7:47am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7979
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
you can do a VCV relearn with a BAS tool i believe. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #898361 15th Apr 2021 7:48am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17305
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
If you haven't already done so, you might want to take a look at this thread:

https://www.defender2.net/forum/topic49151.html
Post #898373 15th Apr 2021 8:23am
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Willfindlay



Member Since: 08 Mar 2021
Location: Yorkshire
Posts: 24
England 2009 Defender 90 Puma 2.4 PU Arles Blue
Thanks I’ll have a look.

I’ve ordered a vcv valve and some millers diesel additive so I’ll let you know if there’s any improvement.
Post #898394 15th Apr 2021 9:45am
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