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Power Strokes
7.3 Tech
99 hard start
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[QUOTE="ROLLING THUNDER, post: 478578, member: 443"] Im working on a 99 f450 and im having a hard time getting it to start it turns over sounds like its hitting on a couple of cylinders and when i do get it to start it runs rough untill warmed up. things that ive checked :injector buzz test come back fine : gp relay good : gp are all good : engine harness is giving 12v to gp's : contribution test good : tack it moving upon crank : oil pressure rises upon crank : no check engine light on : checked fuses in engine compartment : fuel in the fuel bowl : hpop pressure at idle is 500-600 I noticed that the fuel bowl heater is broken inside. I put a new fuel pump on truck last winter along with cleaning the tank and intalling a new tank liner at a radiator shop due to tank film wiping out the pump cleaned fuel line up to the bowl and cleaned fuel bowl and adding a new filter. Im not getting vary much smoke upon cold start up. the trick to starting it cycle the gp twice and then it will start but if i feed it fuel it will die and youll have to wait hours before the next start up. what Im thinking : injectors? : fuel bowl heater not working due to being broken : fuel pressure ? I dont have a way of checking I hope this is enough info to make a good diagnosis thanks stephan [/QUOTE]
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