Colleagues, does anyone have a problem with starting the diesel engine the day after a long journey? (The engine is 1.6L.)
Mainly, after a long journey, the engine takes 2-3 seconds of cranking before starting the next day. The battery is in good condition.
If, before starting the engine with the starter, I turn the key from off to first level key twice in a row - back to off and again to fırst level key and ignitaon position - the engine starts quickly.
In other words, if the fuel pump initially operates twice, filling the fuel line, the engine starts quickly.
I changed the fuel filter 10,000 km ago, so I don't think it's the filter.
It seems that after a long journey, when the engine shuts off, air is entering the fuel supply line or some of the fuel is returning to the tank.
Any ideas?