ajh Posted October 22, 2010 Share Posted October 22, 2010 I'm hoping someone will be able to shed some light on a problem I'm having. Things were running strong last week but a couple days ago (coincidentally I filled up with the Ultra-low sulphur diesel for the first time just before this started so it may be related) suddenly I started getting what felt like fuel starvation at high-rpm (I'm going to guess at around 2500rpm or so) where things would studder. It has gone back to normal, and then the problem has returned at least twice in the last 48h. Something I noticed today is if I use engine-braking then press on the accelerator pedal I get blue smoke for a second, otherwise only a small puff on startup as usual. The lift pump was put on <5000km ago and so far seems to be performing correctly. The fuel filter was changed this afternoon just in case. Without more detail, does anyone have some ideas on what it could be? I have some ideas but would like un-biased opinions before offering them up. Quote Link to comment Share on other sites More sharing options...
ajh Posted October 23, 2010 Author Share Posted October 23, 2010 I think I had a bit of luck. While checking the fuel sender I realized I had not drained the sedimentor yet, when I did red blobs came out with the diesel, removing the bowl revealed more of it. No clue what it is or how it got into the fuel but removing it and cleaning things seems to have cleared up the issues. How often should one be cleaning the sedimentor and changing the fuel filter on these anyway, I've only done 7500km since getting it back on the road a couple weeks ago so I wouldn't have expected that much carp to be in there yet. Hopefully that was the only cause of the issue and my longer drive tomorrow should confirm it. Quote Link to comment Share on other sites More sharing options...
Les Henson Posted October 23, 2010 Share Posted October 23, 2010 People tend to remove the fuel sedimenter - due it's habit of siezing-up and leaking. Clean sedimenter every 6k miles Replace fuel primary filter every 12k miles. Info from AutoData. Les Quote Link to comment Share on other sites More sharing options...
Jon W Posted October 23, 2010 Share Posted October 23, 2010 Just had the same with mine and cleaned it out, great big jelly like lumps in it. Must be the cold weather causing all the carp to go harder. Mine was limited to 40mph and cutting out. All ok again now. Jon Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 23, 2010 Share Posted October 23, 2010 Am i right in thinking that not all vehicles have sedimentors? Will this crud get trapped in the filter in those vehicles without a sedimentor or is it likely to cause more problems? Quote Link to comment Share on other sites More sharing options...
ajh Posted October 23, 2010 Author Share Posted October 23, 2010 If you don't have one the big crud that it catches will block the filter instead, same result in the end but you go through more filters vs cleaning out the sedimenter. Good to know this now though, it's always fun getting to know all the quirks of a new vehicle, let alone a new and 'exotic' fuel one. (as you know the only small diesels over here are the VWs and the 6-8L pickups). Quote Link to comment Share on other sites More sharing options...
western Posted October 23, 2010 Share Posted October 23, 2010 the only smalldiesels over here are the VWs and the 6-8L pickups). over here some delivery lorries have engines around 6 to 8 litres Quote Link to comment Share on other sites More sharing options...
ajh Posted October 23, 2010 Author Share Posted October 23, 2010 Yeah, the number of people here who believe they need to be able to tow a float with an excavator on it with their pickup truck is pretty crazy. On the other end, 200/200/TD5... come on Land Rover, put some guts in the Defender and fit the TDV6. Why have they always fitted something about 25% less than was needed... if the 200/300TDI had been 3L instead of 2.5 we'd all be happy now. Quote Link to comment Share on other sites More sharing options...
western Posted October 23, 2010 Share Posted October 23, 2010 IIRC the Tdi/Td5 & Puma engines are 2.5ltre due to some European countries vehicle taxation rules, over 3ltr means higher tax for the makers & customers. Quote Link to comment Share on other sites More sharing options...
ajh Posted October 23, 2010 Author Share Posted October 23, 2010 Well, 2.95L then, it would still mean a more 'relaxed' operation and only moderately more fuel use depending on tuning, but of course speculating on why LR does what LR does requires a lot of beer to be productive, so next time I'm over, drinks are on me. Quote Link to comment Share on other sites More sharing options...
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