Medium and Heavy Trucks
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Hi Adam, My name is***** will be glad to help. Most likely you have a leak between the tank and pump sucking in air. all it takes is a pin hole to lose suction/prime. Check for leaks in the lines and the fuel filter. If ok fuel could be bleeding back through the pump and check valve.
If you need more help please post the complete engine model number from the engine tag. Let me know
Hi, Did you get this resolved or still need help?