 | Home > Td5 > 2003 TD5 wouldn't accelerate and now won't start |
 
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| Procta Member Since: 03 Dec 2016 Location: Sunderland Posts: 5161  
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check the loom on the crank senor loom, for breaks and maybe buy a cheap crank senor just to see if that fires. Also check the relays for the pump too.
Also i wouldn't rule out the fuel pump mind, Mine had the same issue, with loss of power and miss firing. Turned out to be the fuel pump dying. When me and my dad dropped the tank, it was still making the noise, but not as loud. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back Success is 90% Inspiration and 4 minutes Preparation # you can make it! |
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9th Mar 2024 8:36am |
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| jasryan Member Since: 27 Feb 2024 Location: Cork Posts: 14 
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Thanks - will check the crank sensor loom, hopeful to get time on it this week.
I checked the entry pipe into the fuel pressure regulator while pump was running and there was a decent flow of diesel, so I'm hoping it's not the fuel pump. But will check relay's etc anyway. |
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11th Mar 2024 10:00am |
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| MadTom Member Since: 10 Sep 2013 Location: Olomouc Posts: 616  
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Look here - http://www.thed2boysclub.co.uk/viewtopic.php?f=15&t=62029 - how to test in tank fuel pump from electrical side - noise from pump is nice indication, that it runs, but it is not enough to be sure, that it delivers enough fuel.
I had twice broken pump in Discovery 2 - first only one stage was bad - car was running nice, but with reduced power (max. speed droped from 160 to 140 kph - I was brave that time), but the car was not possible to purge after opening fuel system. Second time, it was totally death - worn brushes. Car was still running, but only to 30 kph, and when climbing small hill, it was down to first gear. Second pump was 3 month old, some aftermarket. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo  |
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11th Mar 2024 10:49am |
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| jim4244 Member Since: 13 Apr 2014 Location: Bedfordshire Posts: 774  
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If you do need to replace the fuel pump then this is the easiest and neatest way to do it. I followed the instructions a few years ago and the job took me around 1.5 hours.
https://www.defender2.net/forum/post823648.html#823648 Jim |
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11th Mar 2024 11:08am |
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| jasryan Member Since: 27 Feb 2024 Location: Cork Posts: 14
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Thanks @MadTom - I've registered on that site to read the post.
And thanks @jim4244 - I've seen that post, and definitely will go that route, as dropping the tank looks like a lot of work for one person |
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11th Mar 2024 5:07pm |
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| Procta Member Since: 03 Dec 2016 Location: Sunderland Posts: 5161
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It might not be getting enough pressure to start it, My peugeot 306 HDI, had a fuel pump failure. What happened there, was the ECU saw the fuel pressure dropped, below what ever pressure it supposed to read, Threw the car into safe mode, then as it got worse, it shut the system down. It fired over and ran with some easy start, to get it away, but as soon as you revved it, as my dad decided to do, it just cut and wouldn't start at all. Same maybe going on with the fuel pump, my TD5 was miss firing like hell. My dad said that is running on four, and it smoking like hell. We were doing the brakes at the time on it, and i changed the fuel filter on it, just rule out something daft in there, and you couldn't hear anything priming, but did the process anyway, it started ok. But then just cut out altogether. That's when we found that the fuel pump bit the dust. Defender TD5 90 ---/--- Peugeot 306 HDI hatch back Success is 90% Inspiration and 4 minutes Preparation # you can make it! |
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13th Mar 2024 9:56pm |
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| MadTom Member Since: 10 Sep 2013 Location: Olomouc Posts: 616
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Just for info - TD5 has not any fuel pressure sensor. So in case of low pressure, there is no way for the engine ECU to know this problem.
And one small experience - Defender TD5 runs with nearly empty fuel tank, but to prime the fuel system, 20 l of diesel in tank is not always enough. We had to add fuel from jerry can, and all started to work again. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo |
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14th Mar 2024 7:18am |
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| jasryan Member Since: 27 Feb 2024 Location: Cork Posts: 14
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Great tips so far, thanks folks - just need some time now to spend on it! Will report back as I work through it.
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14th Mar 2024 7:41am |
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| jasryan Member Since: 27 Feb 2024 Location: Cork Posts: 14
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Fuse 10 is the suggested fuse to check, but I'm guessing that's different in a Disco2 versus a Defender? Anyone know which fuse is correct for a defender fuel pump? No fuse diagram I have identifies a fuel pump fuse (besides the relay under the drivers seat)? Looking through the Haynes manual I can't see one mentioned either |
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14th Mar 2024 2:40pm |
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| 4RF RDS Member Since: 19 Jul 2015 Location: Ottawa Posts: 932  
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Under seat fuse 4
 Click image to enlarge 2010 Range Rover MkIII Autobiography Super Charged (Idris) 2003 Range Rover Mk III (Desmond FitzWilliam) 2000 Defender 110 CSW TD5 (CTX) 1992 Range Rover Classic (Lizzy) 1972 Series III 300 Tdi (Stanwood) 1967 MGB GT Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats. H. L. Mencken (1880 - 1956) |
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14th Mar 2024 5:35pm |
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| jasryan Member Since: 27 Feb 2024 Location: Cork Posts: 14
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Thanks a mill, just double checked the Haynes and realized I’d missed that
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14th Mar 2024 7:45pm |
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| jasryan Member Since: 27 Feb 2024 Location: Cork Posts: 14
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Checked fuel pump fuse - got 21.2mV across the fuse, which seems in range.
Checked crank sensor - loom seems fine, there was oil in the connector, so cleaned that with electrical cleaner (it's an awkward spot!) Holding out hope its the FPR is the problem, waiting on the repair kit still. That'll be the next step. |
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15th Mar 2024 4:18pm |
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| mturri Member Since: 13 Jul 2010 Location: All over Posts: 33  
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Check condition of fuel pump relay (C0730 on below snap).
Ran into same scenario, relay & socket had partially melted, additional resistance starved fuel pump so loss of power and the rest of it. Had to reterminate socket and obviously replace relay. The AC relay on the left side (C0019) is the same type so a straight swap for troubleshooting purposes. Click image to enlarge If no obvious power issues then fuel pump becomes prime suspect. Fuel pressure regulator also possible culprit though any issues tend to be there all the time, plus fuel leakage from around it is usually a tale teller. Mechanically assessing fuel pressure is another way to troubleshoot fuel delivery issues, whether FPR or fuel pump originated. See here https://www.landyzone.co.uk/land-rover/dev...re.125166/ HTH Matt 24 yrs of Td5 ownership D110 Td5 MY06 fully tuned up ex-D2 Td5 MY04 Auto ex-D110 Td5 MY00 ex-D2 Td5 MY00 ex-D2 Td5 MY99 ex-D1 300Tdi MY89 ex-D90 200Tdi MY87 |
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15th Mar 2024 7:26pm |
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| jasryan Member Since: 27 Feb 2024 Location: Cork Posts: 14
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FPR done and unfortunately still won’t start.
My relays don’t look like those in the picture at all, I only have 3 there, two yellow, on black. Not sure what my next steps are now, I guess it could still be the fuel pump. So maybe I have to bite the bullet and cut the hole in the back to have a look. |
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23rd Mar 2024 2:36pm |
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