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Starts fine, runs strong, then stalls. restart only after fuel overflow valve reset

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1998.5 24V It starts fine and quick, runs strong then the fuel pressure will fluctuate and it stalls. It will not restart.  I found the fuel overflow valve is getting stuck in the full open.  Replaced the fuel overflow valve but it keeps happening. If I push the ball on the overflow valve it will start again.    

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  • Mopar1973Man
    Mopar1973Man

    He'll need to key off for 10 seconds. Then do the starter bump. Then it will run the 20 seconds. The stall will be counted and key bump will not function. The ECM has to be down for 10 seconds and do

  • dripley
    dripley

    Mine will do that if you have just bumped for priming or whatever. You can do it many times with out shutting it off.    But if the engine shuts down for any reason other than turning key of

  • Mopar1973Man
    Mopar1973Man

    It could be air leak in the suction side of the pump. He mentions that the fuel pressure gets unstable then it stalls. I've seen a truck with a bad pick up tube in the tank and would do something simi

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  • Staff

I don't think your troubles are like the time I had fluctuations in fuel pressure after going thru everything. Could not figure out what it was I had been thru both trucks fuel systems completely i.e.  new Raptor pumps,draw straws, big line kits, removed tank basket screens, everything. Trucks didn't shut down, but 2-4 bounce with the fuel pressure. Then Mopar Man had me run the regulators pressure adjustment up and down a few times with the trucks running. That stopped the problem.

 

Another Thought.... I've only heard of the tank vent cogging 4 times since reading the forums.... you might try running with the fuel cap loose see if the works. Just a maybe is all

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