I thought it was bad fuel. Changed filters and would run ok for about 3 miles. Changed water separator again same thing. Drained tank put fresh fuel in it no change. Anyone have any ideas?
First it is not mine.It is an 03 f250 no codes. No smoke.Run great for 3 to 7 miles then no power like it's running out Fuel. They changed filters 3 time still the same. I had asked them if alt was charging and batteries good, yes they checked grounds ok.