 | Home > Td5 > difficult starting. I am confused. |
 
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039   
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I also don't think it is electrical. Probably fuel related as I can't find a fault in my glow system.
On this moment I don't suspect the pump. It's only one year old and when my 90 runs it is as powerful as before. So I am thinking in the direction off not enough fuel at start-up. Does the fuel regulator have a part in this? Or could it be the non return valve near the fuel filter? Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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8th Sep 2020 8:17am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8136  
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regulator offers high and low pressure feeds. low pressure unlikely to affect the starting. air in system or fuel blockage more likely. filter head NRV, cracked filter head allowing air in (any hissing?) blocked filter where feed enters rear of engine? Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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8th Sep 2020 9:19am |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
Does the fuel regulator have a part in this? fuel regulator shod only let by that over 4 bar returning fuel to tank
Or could it be the non return valve near the fuel filter? or air bleed in filter head |
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8th Sep 2020 9:20am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Yesterday I changed the fuel filter and the small connector to the starter motor.
Both I think would not have influences on my starting problems as I would expect that the fuel filter would also give problems while driving and asking a lot off fuel while flooring it. But that was not the case. The connector off the starter motor I don't think makes a difference as if it would start dificult it also was running rough for a short time after starting. I changed the plug and rerooted the cable a little to give it some slack as it was tight and fell off a few times. However this morning it started as it should if it have been driven 5 minutes ago. Or was it the filter and as the fuel warms up very quickly it warmed up the filter and that helped the fuel coming through the filter? I am still confused and I don't believe that this was the solution but we will see.I might know more tomorrow morning.  Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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9th Sep 2020 7:52am |
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| MadTom Member Since: 10 Sep 2013 Location: Olomouc Posts: 635  
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Possible filter or some air in fuel system. From my experience, TD5 needs more than one fuel system purge - first after new filter instalation with proper purge cycle and short engine run, second next day with only normal start - this takes out the rest of air with some short bubling noise from fuel system. After this, all bubling noises are gone. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo
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9th Sep 2020 8:15am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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New update. I started fine this morning but after a short drive (5 km) and 1/2 hour wait he took a little longer to start. (coolant temp 46 C) Back home after half an hour same story not directly starting. However after starting and switching off it will start without any problems.
A few hours later also starting without any problems. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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10th Sep 2020 6:10pm |
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| gilarion Member Since: 05 Dec 2013 Location: Wales Posts: 5111  
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If everything is fine now and it seems that by your last post things are getting better, perhaps it was just down to poor or dirty fuel, which may be when you fueled up is that when the problems started. For those who like Welsh Mountains and narrow boats have a look at my videos and photos at.. http://www.youtube.com/user/conwy1 |
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10th Sep 2020 9:12pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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It is getting better, surely after changing the fuel filter. So it looks like it had to do with the bad German diesel.
I know German fuels are bad as my Disco 3 V8 also needed a lot more fuel per km in Germany then in The Netherlands. 
However my 90 might not be perfect but it was always a perfect starter (if I had enough power in the batteries) and now it was/is not. I filled up twice already. Most German fuel was used to drive home 400 km so there wasn't that much left in the tank as I didn't want to take the risk to stop. I filled up twice with Dutch fuel already and drove roughly 700 km so the second tank off dutch fuel is down to 1/4 now. It looks like it now only has some problems starting when warm and left for a short while. I don't understand that on the moment. But yes I hope it was just the fuel and I might buy some injector cleaner if that might help. Any thoughts about that? Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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11th Sep 2020 7:21am |
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| Lwb97 Member Since: 10 Sep 2015 Location: Powys Posts: 75 
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If your problem persists I’d be doing the injector seals, especially if it’ll start straight up when your just checking to see if it’ll start. Sounds like one of the o rings aren’t sealing and allowing air into the system hence the poor starting after a journey.
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11th Sep 2020 8:13am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Today he told me that he doesn't like it anymore.
After a good start in the morning it stalled while waiting at a trafic light after 4 km driving. It started difficult again so I continued but after another 4-5 km it died while driving about 100 km/hr. I got it starting again. Waiting a short time and then priming and then it would start after a few tries but difficult I had to keep starting till it really would run on it's own. So I decided to drive back home. It died another 3 times before I came home. So clearly there is something wrong and I doubt it was the German fuel. Once it starts it runs fine, no power loss AFAIK till it dies suddenly. It can die on decent throttle but also when reducing speed before a roundabout. So what can it be? Small filter at the fuel pressure regulator? injector seals? Or something completely different? Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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13th Sep 2020 12:48pm |
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| Adammacky Member Since: 28 Dec 2019 Location: West Midlands Posts: 309 
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I had very similar symptoms when my crankshaft position sensor was playing up, the wires into the harness were perished so replaced the harness and sensor, sorry if this is no help and good luck
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13th Sep 2020 2:59pm |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6771  
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When my injector seals went I had the driving for a while then dying and hard to restart symptoms. Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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13th Sep 2020 4:47pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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I will order the injector seals etc. tomorrow.
I don't think it is the crackshaft position sensor The way it dies and how it starts again. That's why I think it is fuel related and not a sensor. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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13th Sep 2020 5:28pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Last update I hope.
I changed the injector seals and copper burn plates. The short test drives from yesterday and today went fine. Started directly cold and warm. This morning I tried without glowing and it started within a second. We will see what a longer drive will do. Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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19th Sep 2020 5:05pm |
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