chippy18 Posted November 10, 2011 Report Share Posted November 10, 2011 Hi All I know there are a few on here who are in the know when it comes to Land Rover problems so I am after a bit of advice before I take it off to my local land Rover mechanic. I have a 2004 Defender 90 TD5 which up to an hour ago had been spot on. Went out for couple of hours mooching earlier on. I parked up, unloaded gear, got the dogs out and locked up. Up to then no problems drove there as sweet as normal. Get back a couple of hours later load up, start up and it fires first time as normal but the engine is revving really fast, so turn off start again and its back to normal. Drive off get about three miles down the road stop at a crossroads push the clutch in and off it goes again revving really fast, so turn it off again and restart but this time it carries on revving and now no matter how many times I have started it it is revving very high. As I say up to today no problems, the last time I used it was Sunday and no problems and no problems when I started it today and it drove spot on up until getting back in it.I have not done anything to it apart from putting 50 quids worth of diesel in it on the way today. Can anyone think of anything stupid or simple that it may be before I get on to the garage in the morning. Any advice would be very helpful thanks you. Cheers Quote Link to comment Share on other sites More sharing options...
RoBeRt1990 Posted November 10, 2011 Report Share Posted November 10, 2011 (edited) http://en.m.wikipedia.org/wiki/Diesel_engine_runaway. Could be this were it consumes its own oil Edited November 10, 2011 by RoBeRt1990 Quote Link to comment Share on other sites More sharing options...
chippy18 Posted November 10, 2011 Author Report Share Posted November 10, 2011 http://en.m.wikipedia.org/wiki/Diesel_engine_runaway. Could be this were it consumes its own oil I do hope not. Have just been and checked oil level and it look to be spot on so hopefully not. Cheers Quote Link to comment Share on other sites More sharing options...
WelshLamb Posted November 10, 2011 Report Share Posted November 10, 2011 Diesel getting into oil, does the oil smell like diesel? Quote Link to comment Share on other sites More sharing options...
chippy18 Posted November 10, 2011 Author Report Share Posted November 10, 2011 Diesel getting into oil, does the oil smell like diesel? Thanks Just been and had a sniff of the oil and does not seem to have a diesel odour, would there be any other tell tales if this is happening and is it a major reason behind it. Cheers Quote Link to comment Share on other sites More sharing options...
-Mongrel- Posted November 10, 2011 Report Share Posted November 10, 2011 It could just be a sticky throttle of course, but the self fuelling problem is the one that scares everyone. Quote Link to comment Share on other sites More sharing options...
WelshLamb Posted November 10, 2011 Report Share Posted November 10, 2011 Worn piston (oil) rings could mean the oil is getting from the sump into the cylinders, which is being burned and causing the revving. Ditto oil seals in the turbo, this used to happen to my pajero and it would zoom off down the road with a plume of smoke behind it Diesel getting into the oil is commonly caused by a deteriorated seal in the fuel pump (IIRC) Quote Link to comment Share on other sites More sharing options...
chippy18 Posted November 10, 2011 Author Report Share Posted November 10, 2011 Worn piston (oil) rings could mean the oil is getting from the sump into the cylinders, which is being burned and causing the revving. Ditto oil seals in the turbo, this used to happen to my pajero and it would zoom off down the road with a plume of smoke behind it Diesel getting into the oil is commonly caused by a deteriorated seal in the fuel pump (IIRC) Many Thanks for this , will get it down to the land rover garage in the morning hoping its not really bad its only just hit 75,000 miles so fingers crossed Cheers Quote Link to comment Share on other sites More sharing options...
beardy Posted November 10, 2011 Report Share Posted November 10, 2011 Many Thanks for this , will get it down to the land rover garage in the morning hoping its not really bad its only just hit 75,000 miles so fingers crossed Cheers Just a thought but have a sniff at the filler pipe into the diesel tank and make sure you put diesel in and not petrol , petrol mixed into diesel will also make it rev its head off. beardy. Quote Link to comment Share on other sites More sharing options...
chippy18 Posted November 11, 2011 Author Report Share Posted November 11, 2011 Just a thought but have a sniff at the filler pipe into the diesel tank and make sure you put diesel in and not petrol , petrol mixed into diesel will also make it rev its head off. beardy. That was actually what I thought I had done as I have done it before in one of the vans. But have checked and it was Diesel. Going to leave to the experts now and have just got off the phone to the Land Rover garage I use and they are picking up this morning. Many thanks to all for the advice. Cheers Quote Link to comment Share on other sites More sharing options...
Dr W Posted November 11, 2011 Report Share Posted November 11, 2011 Keep us posted be interested to know what it was. Quote Link to comment Share on other sites More sharing options...
mitchelln Posted November 11, 2011 Report Share Posted November 11, 2011 Diesel getting into the oil is commonly caused by a deteriorated seal in the fuel pump (IIRC) my old 200tdi used to fill the sump up with diesel, turned out to be worn injectors. keep an eye on the oil level.. Quote Link to comment Share on other sites More sharing options...
chippy18 Posted November 11, 2011 Author Report Share Posted November 11, 2011 Hi All well am a bit surprised it can be something so simple, but after a phone call from the garage to tell me my defender is ready to pick up apparently the problem was a dodgy brake light fuse that was messing up the throttle sensor. Mechanic said he has seen it couple of times before and was probably a bad bit of ECU programming. Still if that's all it was then happy days. Cheers for all the advice Cheers Quote Link to comment Share on other sites More sharing options...
keg Posted November 14, 2011 Report Share Posted November 14, 2011 As a huge defender fan ( not the one behind the rad) and an owner of a 300TDi, the wiring on the TD5 loom can be a bit quirky, if oil travels up the loom it wil fry the ECU Quote Link to comment Share on other sites More sharing options...
chippy18 Posted November 14, 2011 Author Report Share Posted November 14, 2011 As a huge defender fan ( not the one behind the rad) and an owner of a 300TDi, the wiring on the TD5 loom can be a bit quirky, if oil travels up the loom it wil fry the ECU Well after the little bit of quirkiness on mine, I have been having a look on some of the Land Rover sites and there certainly is a few examples of the wiring be quirky on the TD5. Cheers Quote Link to comment Share on other sites More sharing options...
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