Greg Storm
Member
Hi to all need some advice please, have a td4 on 04 that sometimes has a problem starting when left all day or overnight, eventually catches with a puff off diesel. Now it's done 91K and well serviced, had a new pre pump 10k ago - pvc 20k - fuel filter -turbo vent - egr bypass - k&n air filter 5k ago synergie 2 set to 4 but later set to 3 for better economy 3.5k oil and filter + sediment drain every 3K. Runs fine with some clatter when cold (worse on setting 4 but assume this is normal) checked all terminals for corrosion and found none anywhere. Starts fine when hot so assume crank sensor fine, pre pump runs for 1 min dead with no leaks or damaged pipes that I can see.Have been using Tesco fuel???? not sure if that makes a difference and have disconnected the high pressure harness on the synergie but left the mafam for now.NOW FOR THE QUESTION: Did a leak back test with ignition ON and pre pump only not cranking and nothing came out of the top of the injectors at all after around 40 seconds (IS THIS CORRECT), there was fuel in the return pipe when removed. Sometimes when I pull up and park it smells a bit rich maybee! Not let me down yet but want to catch it before it does. Are there any other things I should test for? mechanical or electrical?