Citroen Nemo 2010 1300 euro 5 engine with start stop, Fuel diesel. New engine fitted at 150,000 miles under warranty as Citroen fitted faulty oil pump. A few month after fitting I started to get white smoke, had it back to Citroen 4 time but as its intermittent it never happens when they had it. Cold engine, Warm engine, Hot engine , no particular time. short run, Long run, Can last for 1 mile or 10 mile on run, can happen 2/3 times in a day then not for a few weeks, it smells of diesel in the cab when it happens, No water or sludge in oil, No loss in power, things I have tried Tetra clean, Engine and fuel additives, new egr Valve, New glow plugs, New crank shaft filter and pipe, and timing chain has been changed as tensioner went loose. I have noticed when it blows smoke there is oil leaking from the oil filler cap but not the dip stick.( not a lot that I need to top up, just a little ) BTW the van is now at 330,000miles and runs great other than the intermittent smoke. so it has been happening for over 180,000miles ***Don't want to hear trade it in***
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