![]() | Home > Puma (Tdci) > Station wagon 07 Puma 2.4 idling problem...help please! |
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schuee Member Since: 16 Jul 2012 Location: Lincolnshire Posts: 378 ![]() ![]() ![]() |
George,
A faulty VCV valve shows no fault codes, I had idle issues, especially when cold, so just replaced VCV and had it learned and all resolved ![]() Could be something else, though worth looking into. https://www.defender2.net/forum/topic30222...t=vcv+idle https://www.4x4community.co.za/forum/showt...trol-Valve Cheers Keith MY2011 110 XS USW |
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williamthedog Member Since: 29 Dec 2012 Location: south wales Posts: 3441 ![]() ![]() |
Yep as said above vcv your best bet
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GeorgeTDI07 Member Since: 14 Jan 2019 Location: Suffolk Posts: 5 ![]() ![]() ![]() |
Thanks Keith, yes been there and replaced that!
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Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6318 ![]() ![]() ![]() |
it won't idle at all or idles very poorly?
did it suddenly happen or was it progressive? |
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hornet Member Since: 04 Jan 2010 Location: Western Europe Posts: 362 ![]() |
If it rotates but does not start, a faulty crankshaft- or camshaft-sensor (plug, wiring, seat, etc.) may be the reason. ![]() Click image to enlarge |
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GeorgeTDI07 Member Since: 14 Jan 2019 Location: Suffolk Posts: 5 ![]() ![]() ![]() |
It starts straight away but won’t idle. If you keep revs above 2000 it’s ok but as soon as you take your foot off the excelerator it cuts out. It came on gradually....we’ve checked all the obvious things and replaced lots of parts. It’s stumped 2 defender repair specialist, so it’s got to be something no one thought about....!
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Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6318 ![]() ![]() ![]() |
I see the egr has been replaced......does it definitely work correctly tho?
sorry not sure what else to suggest at the moment? good luck. |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20626 ![]() ![]() |
Try replacing the clutch switch. TheThunder Rolls🇬🇧🇺🇸
⛽️🛢️⚙️🧰💪 |
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Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6318 ![]() ![]() ![]() |
sorry Steve,
not sure how that would help? I've disconnected the clutch switch and all it did was over rev / hang when changing gear as it doesn't reduce engine torq on clutch depress. |
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Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6318 ![]() ![]() ![]() |
ah....
could it be switch is the problem ie the engine is constantly in reduced torq mode ie like having the clutch depressed all the time? in which case simply disconnecting would confirm if that's the problem or not? |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17610 ![]() ![]() ![]() |
It sounds very VCV-like to me. I'd almost be inclined to try replacing it again.
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MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2454 ![]() ![]() ![]() |
Not sure if I am just adding noise, but what about gas pedal sensor? Puma 110" SW
............................................................. Earth first. Other planets later |
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custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20626 ![]() ![]() |
Blackwolf could well be right, the symptoms are there.
Regarding the clutch switch, no you cannot just disconnect it on a Puma. Either replace the switch and re-connect or bridge it. You cannot just unplug it, it will not run correctly at all like that. TheThunder Rolls🇬🇧🇺🇸 ⛽️🛢️⚙️🧰💪 |
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landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5811 ![]() ![]() |
Did you get your VCV programmed via the learn process?
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