bad mpg

I have a 2007 Sport Trac with the 4.6L V8. I bought it with only 89000 miles on it and it was very well taken care of. I now have 95000 miles on her and she runs great. However, I have always gotten really poor gas mileage since I bought her. I travel very short distances and live in Florida...

Just replaced my fuel rail pressure sensor on my Ford Explorer 2006 4.0l v6 sohc. I wasn’t able to get a new throttle body gasket so I just cleaned it but everything else worked out good. I headed home on the highway and my mpg jumped from 12 to 15 now I’m back at 11 in city when I was at 12...

(this is over a period of about 6-8 months) To keep a long story short, my 93exp started running like crap and went from 20+ mpg to 14. just changed the plugs and wires 2 months prior. I thought it was a plugged cat so I cut the bottoms out of them and took the stuff out, then welded the...