f150 engine running really bad all of a sudden
after changing the fuel filter used the gas in real tank - when using rear tank truck ran rough - so I only used the front tank for a couple of months running fine - last week I found that I had been overfilling my front tank and it filled my rear tank..... since I started to run the gas out f the rear tank now the truck runs really bad on either tank -sputtering, coughing, jerking around, etc.
it used to run fine with just the front tank....thoughts?