03 duramax
#1
03 duramax
I have a 2003 duramax lb7. I got fuel about a month ago and it had water in it. It started missing really bad and sounded like it was knocking. I changed the fuel filter and a week later it started doing it again So I changed the filter again put injector cleaner in it and water dry for diesel. It has been running fine until the other night I started doing it again. I came home drained took the plug out where you drain the water out. Its running fine now but what could be causing this?
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