My buddies 06 was clattering a little so we checked it out and found out he had water in the fuel. He bought some diesel 911 and mixed in the tank per the instructions and changed the filter and added diesel 911 in with the filter. Now the truck will not crank at all. Ive tried everything i can think of and no luck. I even drained the canister where the filter is and filled it up with new diesel and no luck. I primed it over and over and nothing. What yall think?