Discovery2 td5

[phil64h]

I have a little issue with my disco,if fuel down near half or lower and vehicle left sitting for a few hrs go to start will start immediately but stop after 5/10 seconds then need to turn over until finally fires up,if fuel topped up issue doesn't happen any help would be greatly appreciated

[Xtreme]

Redundant post - vehicle info supplied in 'subject'

[RANDLOVER]

My theory is a leak in the fuel system somewhere above the 1/2 tank lvl lets air in causing the stoppage. The long cranking on re-start is pro'ly the fuel pump re-priming the system. See if you can can turn the the key on, but not crank and hear the fuel pump running, it should then shut off when the system is pressurised and you should be able to start without the prolonged cranking. Alternatively the pump is weak and copes with the assistance of full tank head pressure but struggles without it, and the prolonged cranking may possibly allow the cam driven injectors to assist by siphoning fuel.