 | Home > Td5 > Engine running rough and died |
 
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| HansT Member Since: 25 Dec 2012 Location: Mariefred Posts: 173   
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On the way home today, the engine was starting to run rough an losing power. I had to change down in gears to keep going. After a few km it gave up and then refused to start. Engine temperature was normal all the time and warning lights also behaved normally.
Luckily enough, another Defender stopped and gave me a tow all the way home. Excellent service. Thanks Rodolphe! When I got home I tried to start it again and it started with some hesitation but running very rough (on some cylinders only) It was getting late and too cold to make further investigations I went in and poured a whisky  .
Tomorrow I have to figure out what the problem might be. Have you guys any ideas? Fuel starvation? I noticed a lot of soot in the exhaust pipe but no abnormal smoke. I will make a search on this site for similar problems. Hans |
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13th Apr 2017 6:53pm |
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| pj2106 Member Since: 20 Dec 2012 Location: Huntingdon AKA The Shire Posts: 1500  
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Sounds like no fuel to me check that first! 2008 110 2.4 XS Utility (Hagrid)
2002 90 TD5 Hardtop (Sully) Sold 1998 300TDi D1 (Billy) Sold |
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13th Apr 2017 7:42pm |
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| Jim G Member Since: 21 Jul 2014 Location: Ormskirk Posts: 92 
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Possible blocked fuel filter 1984 300TDi hardtop Stornoway Grey
1984 200TDi hardtop..... soon to be a V8 .. but which V8 ? 1974 DAF T244 4x4 wagon converted to a motorhome 1976 Jaguar XJC with supercharged engine |
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13th Apr 2017 7:48pm |
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| grafty99 Member Since: 15 Aug 2012 Location: North Devon Posts: 4786 
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Short of the basics such as fuel filter and oil in loom - I would be investigating injector seals, fuel pump failure and crank sensor
 2002 90 Td5 Station Wagon
1990 Vogue SE Triumph Tiger Explorer 1200 Td5 90 Thread http://www.defender2.net/forum/topic50767.html Tdi 110 Thread https://www.defender2.net/forum/topic69562.html RRC Thread http://www.defender2.net/forum/topic54492.html Instagram http://www.instagram.com/george_grafton |
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13th Apr 2017 7:50pm |
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| HansT Member Since: 25 Dec 2012 Location: Mariefred Posts: 173
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Thanks for your advise guys.
This morning I did some further investigations. - Turned the key on. Engine lights work normally but there is no sound from the fuel pump. The engine starts but with hesitation and runs very rough. Switch the engine off. - Turned the key on and pressed the throttle five times. The engine goes to purging mode and the engine light starts flashing. But no sound from fuel pump. Switch of the key. My conclusion is fuel pump fuse, relay or pump. What do you think? In the manual I have managed to locate the fuse but there is nothing about the relay. On the Internet there is a lot of confusing info about the location. Anyone knows for sure? My car is TD5 and MY 2004. Thanks in advance! |
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14th Apr 2017 9:09am |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
relays driver seat box
 Click image to enlarge Click image to enlarge |
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14th Apr 2017 10:05am |
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| HansT Member Since: 25 Dec 2012 Location: Mariefred Posts: 173
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Thanks dorsetsmith for those diagrams.
I checked the No 4 fuse and it was ok. However, My relay configuration was different with only three relays. Two yellow and one black (also different in shape). Click image to enlarge Only the left relay was clicking when ignition was switched on. Swapping the yellow relays made no difference which to me indicate that they are ok. No indication of oil in the loom. Both connections are dry (loom was replaced two years ago). I also connected my Nanocom and it came up with two fault codes: (2.8 ) Ambient pressure circuit (logged low) (4.3 ) Coolant temperature circuit (logged high) I deleted both fault codes and they did not return. The engine was idling very rough during this operation and I also looked at the cylinder readings on the Nanocom and they fluctuated quite a lot. However, after a while the engine started to run smoother (still idling) and the Nanocom cylinder readings did not show any big fluctuations. I did not dare to take it on a test run as I had not found any faults. A final test o turning the ignition on still only gave a click from the left relay and no sound from the fuel pump. With this I left the Defender for today and will have another look tomorrow. Have you guys any ideas of what is going on? /Hans |
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14th Apr 2017 5:41pm |
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| HansT Member Since: 25 Dec 2012 Location: Mariefred Posts: 173
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Thanks for that info dorsetsmith.
Is the function of the black fuel pump relay identical to the yellow glow plug relay and can they be swapped for testing purpose? Do you have any thoughts about the fault codes? /Hans |
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14th Apr 2017 6:11pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
With your Nanocom plug in can see engine RPM ?
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14th Apr 2017 6:17pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20453
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Check the engine sensors such as the MAF, does the TD5 have a MAP sensor too or is that just th Puma?
These things can cause all sorts. Earthing can also.  No Guts, No Glory.
🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 |
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14th Apr 2017 6:24pm |
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| HansT Member Since: 25 Dec 2012 Location: Mariefred Posts: 173
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Yes, the Nanocom also reads engine rpm. |
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14th Apr 2017 6:29pm |
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| HansT Member Since: 25 Dec 2012 Location: Mariefred Posts: 173
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Yes, these sensors and earth connections are on my list but I have not got that far yet. |
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14th Apr 2017 6:34pm |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769  
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The maf is easy to test. Just unplug it and see if the defender works better Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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14th Apr 2017 7:18pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
Click image to enlarge |
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14th Apr 2017 8:37pm |
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