Hi there,
I have a 2003 Defender TD5, which has done 45k miles. Since I bought the car I have had a problem with almost constant misfire from the engine, and an intermittent loss of power (revs max out at around 1500, speed is limited to 5/10mph). Both white and black smoke comes out of the exhaust (not at the same time!!), and usually turning the engine off and leaving it for anywhere from 5 minutes to 24 hours will fix the problem.
SO FAR: I have removed and re-cleaned the ECU of oil (which was also cleaned and replaced at the garage a few weeks ago - however this only temp fixed the problem), I have checked the boost pipes for leaks and have found nothing, I have unplugged the MAF sensor and found no change, I have drained the fuel pump with no odd noises detected, removed and checked the fuel filter (which has no protective casing on it, and does not have the water sensor bit at the top - the wire to the side just hangs loose), checked the air filter.... nothing.
I have been advised to rev the engine higher in 1st, 2nd and 3rd to open up the valves and allow a better supply of fuel through and stop them 'sticking', and I have switched to the expensive diesel. Nothing seems to work. Also, sometimes after I have taken my foot off the accelerator there is still a few seconds of acceleration. I'm not sure if this is normal.
A friend of a friend has suggested it may be either the fuel regulator valve, or the harness may need replacing. I have looked under the engine and there is (what I think) a large leak coming from (lying underneath with feet out the front of the car) the right of the engine. Whilst I haven't noticed any puddles underneath the car, the underneath of the engine does seem to be quite wet.
ANY SUGGESTIONS!?!?
I have a 2003 Defender TD5, which has done 45k miles. Since I bought the car I have had a problem with almost constant misfire from the engine, and an intermittent loss of power (revs max out at around 1500, speed is limited to 5/10mph). Both white and black smoke comes out of the exhaust (not at the same time!!), and usually turning the engine off and leaving it for anywhere from 5 minutes to 24 hours will fix the problem.
SO FAR: I have removed and re-cleaned the ECU of oil (which was also cleaned and replaced at the garage a few weeks ago - however this only temp fixed the problem), I have checked the boost pipes for leaks and have found nothing, I have unplugged the MAF sensor and found no change, I have drained the fuel pump with no odd noises detected, removed and checked the fuel filter (which has no protective casing on it, and does not have the water sensor bit at the top - the wire to the side just hangs loose), checked the air filter.... nothing.
I have been advised to rev the engine higher in 1st, 2nd and 3rd to open up the valves and allow a better supply of fuel through and stop them 'sticking', and I have switched to the expensive diesel. Nothing seems to work. Also, sometimes after I have taken my foot off the accelerator there is still a few seconds of acceleration. I'm not sure if this is normal.
A friend of a friend has suggested it may be either the fuel regulator valve, or the harness may need replacing. I have looked under the engine and there is (what I think) a large leak coming from (lying underneath with feet out the front of the car) the right of the engine. Whilst I haven't noticed any puddles underneath the car, the underneath of the engine does seem to be quite wet.
ANY SUGGESTIONS!?!?