Home > Puma (Tdci) > 2.4 white smoke on start up |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20263 |
Is the idle stable when cold?
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14th Apr 2021 8:13pm |
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Willfindlay Member Since: 08 Mar 2021 Location: Yorkshire Posts: 24 |
No, it’s not great but as soon as you increase the revs then let it idle again it’s fine.
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14th Apr 2021 8:17pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20263 |
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. |
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14th Apr 2021 8:30pm |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7979 |
^^^ VCV i would also suggest. Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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14th Apr 2021 8:36pm |
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Willfindlay Member Since: 08 Mar 2021 Location: Yorkshire Posts: 24 |
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.
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14th Apr 2021 8:39pm |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20263 |
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14th Apr 2021 8:53pm |
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mwestcrew Member Since: 09 Dec 2019 Location: South Warwickshire Posts: 245 |
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 |
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14th Apr 2021 9:23pm |
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bear100 Member Since: 22 Mar 2010 Location: South Wales Posts: 1913 |
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) |
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14th Apr 2021 9:51pm |
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Willfindlay Member Since: 08 Mar 2021 Location: Yorkshire Posts: 24 |
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? |
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15th Apr 2021 6:44am |
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Leamreject Member Since: 19 Dec 2020 Location: Middle Earth - Leamington Spa Posts: 969 |
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 |
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15th Apr 2021 6:51am |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7979 |
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 |
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15th Apr 2021 7:47am |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7979 |
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 |
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15th Apr 2021 7:48am |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17305 |
If you haven't already done so, you might want to take a look at this thread:
https://www.defender2.net/forum/topic49151.html |
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15th Apr 2021 8:23am |
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Willfindlay Member Since: 08 Mar 2021 Location: Yorkshire Posts: 24 |
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. |
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15th Apr 2021 9:45am |
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