hi can anybody help me, i bought a w reg focus 1.8 tddi from auction other day and when i turned it of it would not start on its own. it will only start with easystart and runs perfect. but once turned off and left 10/15 mins it needs easystart again. ive checked glowplugs and they work fine . i also fit a sqeezy inline diesel primer just before fuel pump so it would not draw air in. and i also cracked injector pipes loose and turned engine over and diesel came out so it aint the pump.. please help

 

it could still be the pump