2250 Dreaded Fuel PUMP
10-16-2020, (Subject: 2250 Dreaded Fuel PUMP ) 
Post: #1
2250 Dreaded Fuel PUMP
Looking for some Ideas - ISX 2250 the common 0559 Fuel Pump issue - Truck at idle would suddenly almost die completely and pick back up would occur every 6-7 Seconds

Ended up replaced entire Fuel Pump as Cam was eat up/etc - Complete new Pump had to change 2 fuel lines as is new design etc.

Once complete an idle no codes truck ran great , Test drive when accelerate it falls on its face and dies... Once again the dreaded 0559 Fuel Rail Pressure Mod / severe low ........

Not finding any leaks..... Ideas?
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2250 Dreaded Fuel PUMP - Smooth - 10-16-2020



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