steve200TDi Posted October 7, 2013 Share Posted October 7, 2013 Hi, After finishing all of the roll cage and wings etc. I have been happily driving it for the last 8 months going to work and on long journeys and its started straight up on the first crank no problem. Yesterday I drove it back to my house (4 or 5 miles), it started up fine, drove back, all was fine, but I thought that the fuel pump sounded louder than normal, which at the time, I thought was not good. This morning when I go to work, get in and start it up, it turns over, but doesn't even think about starting. The fuel pump sounds a bit louder than normal, which on here, means its not a good sign and its on its way out. But being a TD5 I can't help thinking about all the other things like the injector washers and fuel pressure regulator etc. There are no external leaks from anywhere, there's a little oil on the ECU plug which I have cleaned and has made no difference and the oil level hasn't increased. It was running fine and now it wont start. What does the panel recommend. I had thought it was the fuel pump and thought it would be an easy fix, but now I'm not so sure. Steve Quote Link to comment Share on other sites More sharing options...
Anderzander Posted October 7, 2013 Share Posted October 7, 2013 Can you plug it into anything ? Quote Link to comment Share on other sites More sharing options...
landy andy. Posted October 7, 2013 Share Posted October 7, 2013 Have you tried a fuel purge, then start? Ignition on, press throttle pedal five times, wait till engine light out then start Andy Quote Link to comment Share on other sites More sharing options...
Tanuki Posted October 7, 2013 Share Posted October 7, 2013 Try running the standard TD5 fuel-system-purge cycle a few times. Turn ignition switch to position II Pump throttle 5 times. You should get the MIL light flashing and hear the fuel-pump running - it may cycle on and off for minutes or so. If you hear any swishing/gurgling/whooshing noises that shows it's expelling 'trapped wind'. Question is - how did the trapped wind get in there? Quote Link to comment Share on other sites More sharing options...
smallfry Posted October 7, 2013 Share Posted October 7, 2013 I recommend swapping it for a 200Tdi Quote Link to comment Share on other sites More sharing options...
muddy Posted October 7, 2013 Share Posted October 7, 2013 Not much help I know but my td5 disco did this on Friday, running the purge cycle 3 times sorted it out, it's been started many times since. However like you I am now thinking the worst! Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted October 8, 2013 Author Share Posted October 8, 2013 I've done the purge cycle 3 or 4 times and still doesn't start. There is a gurgling sound, so there maybe air in there somewhere, but how it got there is probably the problem. With respect to the pump speed dropping when the engine is cranked I guess this could be down to the engine taking all the battery power and not due to cylinder pressure travelling up the fuel lines. What are the common failure modes of a fuel pump? Steve Quote Link to comment Share on other sites More sharing options...
Aragorn Posted October 8, 2013 Share Posted October 8, 2013 You could perhaps pop the return line off the fuel regulator and stick it in purge mode and see if your getting fuel flow. If fuel comes out at a decent rate, the pumps fine. Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted October 13, 2013 Author Share Posted October 13, 2013 Well I plugged the Nancom/Faultmate and it didn't really show anything apart from: Air con Gearbox/ABS Rev counter All which I haven't got! I checked the inputs and found that the pedal was working, showing the correct voltage and check sum. The coolant, air and fuel temp was all working giving a reading. I will change the fuel filter when that arrives to see if that makes any difference. Steve Quote Link to comment Share on other sites More sharing options...
Anderzander Posted October 13, 2013 Share Posted October 13, 2013 Have we checked the ECU earth ? I ran a dedicated wire on mine back to the battery. If that's removed it will crank etc but won't start. Quote Link to comment Share on other sites More sharing options...
Ash.Witty Posted October 14, 2013 Share Posted October 14, 2013 My mates was duff injector seals, had run fine for years with no problem then eventually started to die. Intermittent misfires, noisy pump, difficult to start when hot and sometimes when cold. Changed the seals and was like a new truck, not a hard job and can be done in a few hours for less than £30 parts. Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted October 14, 2013 Author Share Posted October 14, 2013 Right I've run a dedicated earth from ECU bolt down point to earth on the battery and removed the split charge relay to give a few more volts (from two batteries), but still it just cranks over with no signs of starting. I'm yet to try a new fuel filter, but surely it cant be injector washers, starting one day and not the next. I thought that would have been a gradual hard to start, cuts out kind of thing? Steve Quote Link to comment Share on other sites More sharing options...
V8 Freak Posted October 14, 2013 Share Posted October 14, 2013 Sounds a little like a friends disco earlier this year... Was running fine and then one day decided not to start.. After all manner of ECU changes, etc. decided to pull the pump out (Even though it was still whirring as normal) only to find the pump had become dislodged from the whole cradle part. Replaced the pump part only, back in, purged three times and away it went. Been god as gold since. Might be worth a look before disturbing the engine.... Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted October 14, 2013 Author Share Posted October 14, 2013 I had originally thought it could be the fuel pump as it's a little bit noisy, but as you say I don't really want to disturb the engine and washers etc. I still have the option of changing the fuel filter, so I'll do that first, then have a think about buying a genuine fuel pump.... Steve Quote Link to comment Share on other sites More sharing options...
bluespanner Posted October 14, 2013 Share Posted October 14, 2013 If the fuel pump has suddenly gone noisy chances are its gone wrong, injector seals go down over a period of time. The ecu earth problem is easily diagnosed by looking for the eml on ignition on. If it doesn't come on, she won't start! Quote Link to comment Share on other sites More sharing options...
landy andy. Posted October 14, 2013 Share Posted October 14, 2013 My injector washers were fine one day, shot the next, easy, cheap, and good place to start Quote Link to comment Share on other sites More sharing options...
Aragorn Posted October 15, 2013 Share Posted October 15, 2013 Have you checked for fuel delivery by removing the return line yet? Make sure you do the return line, as that ensures the pump is properly pressurising the rail. Removing the feed only tells you the pumps capable of moving fuel, rather than actually producing the required pressure. Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted October 20, 2013 Author Share Posted October 20, 2013 Well, I bought a new fuel pump and it seems to have cured it! Bit fiddly removing it, but its done now, so well pleased! Steve Quote Link to comment Share on other sites More sharing options...
Anderzander Posted October 20, 2013 Share Posted October 20, 2013 Great news ! How did you fit the pump ? Drop the tank or cut a hole ? Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted October 20, 2013 Author Share Posted October 20, 2013 I dropped the tank half way, removed the pipes and plug and then dropped it fully, took it out and cleaned the top of the tank and replaced the pump. A little bit fiddly at times, but its done now! The pump purges the air out so quickly to leave a near silent pump! Steve Quote Link to comment Share on other sites More sharing options...
Anderzander Posted October 20, 2013 Share Posted October 20, 2013 I made a faux pas with mine ... I recently replaced the crossmember and had the tank out of the 90 to do it. I should have cleaned out the filter while it was out - but I never thought. Now it's back it's a bit noisier than before and I wonder if it's because I've disturbed some junk in moving it. The problem is that it was an absolute nightmare to get in and out. I think the bracings on the underside of the tub are in the worst position. Thus I'm considering cutting the floor to get at it this time...... Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted October 21, 2013 Share Posted October 21, 2013 Glad to hear you got it sorted Steve. Mo Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted October 29, 2013 Author Share Posted October 29, 2013 Well, it just gets better! Slight flat line (drop off) in power while pressing the accelorator pedal followed by white smoke. Answers on a postcard........... I have my suspicions...... Steve Quote Link to comment Share on other sites More sharing options...
Tanuki Posted October 29, 2013 Share Posted October 29, 2013 Injector seals? [Knacked injector-seals are often a cause of fuel-pump premature-death as well as starting issues when combustion gases get into the fuel-rail]. Quote Link to comment Share on other sites More sharing options...
Simon119 Posted October 30, 2013 Share Posted October 30, 2013 Mine did that not long ago, you'll be pleased to hear it was the injector washers. Exactly as you describe, was driving along, loss of power, lots of white smoke. Changed the washers and smoke has gone and have had no running issues since. HTH Simon p.s. Anderzander, i have a photo with all the measurements on for cutting a hole in the floor to change the pump if you want it, save you lying underneath with a tape measure. Quote Link to comment Share on other sites More sharing options...
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