Medium and Heavy Trucks
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Hi my name is***** it cutting out instantly like you turned off the key switch or like it is starving for fuel? Any fault codes?
thanks for the update. Check the fuel lines between the tank and pump for leaks sucking air or restrictions. Also verif you have good fuel supply pressure and install a clear hose on the suction side to check for air bubbles indicating a leak or restriction. Low fuel pressure can be caused by a faulty pressure regulator on the back of the head or a weak fuel transfer pump. Let me know