 | Home > Td5 > Unstable idle is driving me mad! |
 
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| rallysteve Member Since: 10 Feb 2014 Location: Cumbria Posts: 2200   
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My 02' 110 still has an annoying idle problem. Has more or less done it since i bought it 2yrs ago. The usual symptom, dip the clutch when rolling to a stop at junctions etc and engine idle is really unstable (grr, grr, grr, grr....) blip the throttle and its fine until it drops back to idle.
Things have improved lately and now only does it when cold (but not until you get to a juction to slow down). Other than this is drives fine, hardly any smoke, plenty of power, drives smoothly except at a bit jerky at low throttle opening in 1st and 2nd gear. Engine is 15p and has done just over 110k, has had the following done: Genuine FPR fitted Genuine injector seals fitted Full services with genuine filters Genuine VDO MAF sensor fitted Inlet manifold spotlessly clean as is MAP sensor EGR removed Decatted Mid-pipe replacement Fuel pump pickup spotless Filter air bleed valve replaced Injector harness replaced and no oil in red plug Cant really think of anything else to try other than a remap! Any suggestions, Cheers Steve 02' 110 TD5 Double Cab Rebuild Thread 84' 90 3.9 V8 Caged Pickup Build Thread - Now For Sale |
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6th Mar 2016 12:50pm |
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| ibexman Member Since: 13 Dec 2008 Location: kent Posts: 2875
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Have you tried injector cleaner
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6th Mar 2016 1:10pm |
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| keith Member Since: 15 Aug 2012 Location: Edinburgh Posts: 2163 
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Change your driving style . That's what I was told 3 yrs ago . It's not a car .
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6th Mar 2016 2:00pm |
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| gazman Member Since: 17 Aug 2015 Location: Liverpool Posts: 652 
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Can't remember what I was told exactly but it's something to do with emissions. It will miss behave till the speedo sits at zero.
Something along the lines of it cuts fuel to lower the emissions and save fuel. 2014 - current ..... 2003 defender td5 90 (my car) 2009 - current .... 2005 zx10r |
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6th Mar 2016 3:09pm |
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| Fatboy Slim Member Since: 04 Feb 2008 Location: Bridgend Posts: 1006 
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Nothing wrong with it. They're meant to do it, part of the fuel saving strategy in the fuel map.
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6th Mar 2016 3:21pm |
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| steve_c3 Member Since: 30 Apr 2015 Location: Hants Posts: 171 
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I'm experiencing exactly the same thing. I've done most of the things on your list plus I've had a Stage 1 remap but it still does it. (Would highly recommend the remap though as it transforms it!!).
Unless the fuel saving strategy is correct, (which would explain it and would also stop me trying to solve it!) I have read somewhere that it could be the 'clutch position sensor' which I believe is on the master cylinder. Not had a chance yet to check this out on mine but could be worth a look? 2002 Defender 110 CSW TD5 |
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6th Mar 2016 8:48pm |
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| Fatboy Slim Member Since: 04 Feb 2008 Location: Bridgend Posts: 1006
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Simply put, no. Purely because it's a characteristic not a fault. Don't worry about it, it's perfectly normal. I'd be more concerned if it didn't do it
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6th Mar 2016 8:54pm |
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| Fatboy Slim Member Since: 04 Feb 2008 Location: Bridgend Posts: 1006
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And the fuel saving strategy is correct. Trust me chap, I know these things intimately
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6th Mar 2016 9:01pm |
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| Fatboy Slim Member Since: 04 Feb 2008 Location: Bridgend Posts: 1006
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Double post. Echo.............
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6th Mar 2016 9:01pm |
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| Ranger Member Since: 17 Nov 2011 Location: United Kingdom Posts: 75 
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Fuel valve regulator? Common fail on the TD5
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6th Mar 2016 10:59pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3247  
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Check the crank position sensor. There was a recall in 2001/2 as a lot of the 15p engines did not have the correct shim fitted, most did not have the shim at all.
My 2001 15p had the shim missing and once diagnosed and shim in place it transformed the vehicle. Bob 2015 Jaguar XE240 R Sport - goes like ....... !! 2013 Defender 90 CSW - sold 2009 Defender 110 Double Cab - sold 2001 TD5 90 CSW - offroad project - sold to a forum member 2011 Porsche Boxster - for the sunny days ! |
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6th Mar 2016 11:02pm |
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| Martin 01 Member Since: 13 Feb 2012 Location: East Yorkshire Posts: 500 |
I think mine suffers from the same symptoms.
Mainly when stopped, seems as if it drop on to 4 cylinders, sort of 'chuggy'. Never cuts out but is a bit annoying. Also when slowing down sometimes I seem to get a bit of thudding from underneath which I think maybe the prop. Would I be right in thinking this ? Doesn't happen all the time. |
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6th Mar 2016 11:58pm |
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| Clive Member Since: 21 Mar 2014 Location: Littleborough Posts: 467 
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I also get a similar effect with mine, coming to a stop it idles very rough as though it's mis-firing and only running on 3 or 4, after a few seconds it goes away and ticks over normally, seems fairly consistent but worse when hot.
I don't ever remember my earlier Td5 (10P) doing it. I had wondered about oil in the loom but couldn't see any trace of any last time I looked. |
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7th Mar 2016 11:00am |
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| Fatboy Slim Member Since: 04 Feb 2008 Location: Bridgend Posts: 1006
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The early 10ps don't do it. The later ones do especially with the 90 software from memory. All the 15ps do it 90,110,130, disco..........
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7th Mar 2016 11:03am |
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