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Was driving home one day from work fuel filter light come on.Changed fuel filter and bleed injector lines . Was doing fine until about a month ago and it went dead on me. Had to have it towed home thought it maybe the glowplug relay change it changed the batterys and had the alternator checked and it tested good what could be the problem
 

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It sounds like the lift pump has failed. Is there any fuel coming out the schrader valve on the fuel filter housing? Crank engine over, and see if there is any fuel. If not, take the line that feeds the filter loose, crank the engine over, and see if there is any fuel there. Next, are you sure there is fuel in the tanks? These trucks have a tendency to break the pick up lines off, and won't draw below 1/4 of a tank.
 
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