Question 2003 E250 misfiring constantly, the check engine light is flashing non stop as well. This started happening about 10 minutes after I filled up a 7-11 pump that had previously been out of service for some time, the reason is unknown. The wires and plugs were changed last month and I just changed the plugs again today and the problem was subdued for a short time.
Answer Have the trouble codes read. You probably know that you may have gotten bad fuel. Change the fuel filter religiously (weekly) for the next few months. I would almost advise having the tank drained and cleaned. Also, you may be looking at having the injection system fogged, to free up debris and trash. Let me know what the codes say, but pick up a fuel filter while at the parts store getting the codes read.
