bobed90 Posted January 6, 2014 Share Posted January 6, 2014 At work we have an 02 plate 110 td5 utility station wagon. It has always been noticeably slower than our other td5 110's but recently it became much worse. We tow daily up to 3.5 tons and cover around 300 miles per week. Over the past 6 months we have had issues with power surges combined with black smoke, which after it had a service and a new MAF sensor went away, but it was still down on power. The power loss became much worse recently resulting in only being able to achieve 35mph with lots of black smoke when under load and the turbo is definitely not spinning up. The land rover is currently with an independent land rover specialist. It has been there for a few weeks being looked over and different things being tried. So far it has had the injectors changed for a tested second hand set, and a replacement ecu, as it had oil in it. The in tank fuel pump has also been changed. This has still not resolved the power issues although it has stopped smoking. They are now saying it will require a rebuilt engine with new turbo etc and will cost around £9k to have all of the work done. This seams a crazy amount to spend on a 12 year old work truck! Are there any other possible causes for this power loss? The truck itself is in good order and other than the engine it is mechanically sound. The engine has done 100000 miles and was not noisy or rattly with no metal filings in the oil. It uses no oil but there is a slight weep of water at the back of the engine. There is no play in the turbo shaft and it spins freely and smoothly by hand. Thanks in advance for any help. Quote Link to comment Share on other sites More sharing options...
dirtyninety Posted January 7, 2014 Share Posted January 7, 2014 Have you checked the fuel pressure? IMHO black smoke means either too much fuel and the right about of air, OR the right amount of fuel, and too little air. Id be checking for collapsed intercooler hoses, sometimes they de laminate on the inside and sometimes they collapse. Was the MAF sensor a good quality replacement? Diagnostics should flag up any dodgey sensors. Quote Link to comment Share on other sites More sharing options...
landy andy. Posted January 7, 2014 Share Posted January 7, 2014 Delaminating hoses would be my first check. I'd also try a different garage, as it doesn't sound like they have much of a clue, and are exspensive. Andy Quote Link to comment Share on other sites More sharing options...
dailysleaze Posted January 7, 2014 Share Posted January 7, 2014 I'd look at the intercooler hoses too. They get really gutless with no boost Quote Link to comment Share on other sites More sharing options...
bobed90 Posted January 7, 2014 Author Share Posted January 7, 2014 Thanks for the advice. The Maf sensor was a genuine parts unit from bearmach. I have also already changed the intercooler pipes just in case it was that but it made no difference. I have also checked the air intake pipes as i had a slight whistle occasionally under load, but there was no evidence of any holes. Quote Link to comment Share on other sites More sharing options...
Rangy35 Posted January 8, 2014 Share Posted January 8, 2014 Have you checked the waste gate is not seized in the open position? Have you done a compression test? Quote Link to comment Share on other sites More sharing options...
Landy-Novice Posted January 8, 2014 Share Posted January 8, 2014 shame your no closer as we could have a look for you. have you had it plugged in to see what/if any fault codes come up? Quote Link to comment Share on other sites More sharing options...
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