Quote:
Originally Posted by SL Runner
Well..the issue is, when you try to turn on the engine after 5 minutes of turning off the engine - it struggles to start. I wish if can show you all this. :P . Just curious to know..Is there any non-return fuel valve available in the fuel pump? Is it exists, maybe fuel is leaking from there..But I'm worried as I witnessed the fuel line pressure back at the garage and it looked fine. Yesterday I drove the vehicle for 100Km and didnt experience any unusual issues. It has done 14Km/L. I wish if I have a tool to observe the fuel line pressure back at home. My gut feeling is fuel line pressure is dropping due to some reason... 
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The check valve has to either be part of the fuel pressure regulator or part of the pump.