hi new to this forum i just bought a 1998 chevy 3500 crew cab 4x4 with 232xxx miles. Everything works great until i decided one weekend to save a few bucks and poured fuel oil in the tank cause a friend said it would work great. Well thats when all these problems arose. so far i have replaced the injector pump with a used one with approx. 75000 miles on it, a new lift pump, ops sensor and fuel pump relay and relocated the pmd to the front bumper. Heres the problem. First thing in the mornin i try starting it and she fires up great. i can let it idle for at least 2 hrs and no problem but once i start puttin rpms to it and drive it around a field i got itll cut rite out after like 30seconds of drivin. at first i thought it was dirty fuel oil so i hot wired the lift pump and drained the tank through the t valve on front of the motor. after that i put 5 gallons of clean diesel with additive in the tank and still same problem. no codes of any sort show up either. but after it shuts off i try and open the bleeder on top of the fuel filter housing and either air blows out or sucks in and the filter housing is empty of fuel

 

fuel pump not putting out enough??? was the fuel system bled?