Prolly leaking pressure. Poor quality casting....Cummins builds that pump in Juarez Mexico and the casting is dual sourced to a poorly managed company in Missouri and Europe. The casting has to hold pressure and if it doesn’t this is the result.
Cummins ISX15 never ending check engine lights
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by javelinjeff, Apr 30, 2019.
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