dispatchdan

The temperature sensor reads fine and I have tried swopping this over, the heater relay clicks in and the heater plugs glow red. The replacement engine is meant to have done 70,000 The bit I can't understand it runs perfect when it runs. There is no diagnostic trouble codes. Any more ideas would be appreciated Dan

Ok hope someone can help have some issues with a 2009 2.0 hdi dispatch van The engine went bang dropped a valve on no.3 so I sourced a engine from the breakers put it in started up with original fuel lines wiring harness etc has got new turbo on and new starter. When the van is running it runs fine when it's been running it starts fine. But leave it over night and it will not start literally an hour with jump leads and consistent cranking to get it going. So have tried the following Checked timing ok Checked for air locks ok Changed starter motor ok Changed battery ok Checked inlet side Checked exhaust for blockage ok Changed cam shaft position sensor ok Changed crank shaft position sensor ok Changed filter housing ok Heater plugs ok Has anybody got any ideas ? When it cranks it blows out smoke rich unbunburnt diesel smoke, eventually when it does start from cold it fires more and more each time till it will just about run then blows rich unburnt fuel smoke out and will eventually clear and run sweet. Leave it over night and its just the same again. It doesn't appear to have a electric lift pump for priming the fuel just a hand primer! Please any advice would be appreciated