I've read some forums saying there is a TSB that says a 2000 Ford Ranger can have the computer upgraded with a new firmware to make the truck run better and the update is free? Is this true? How does this work? Do you just go to the Ford dealer and tell him to update your computer and make it snappy?
I'd like some ideas on this. My idle is a little off so I'm replacing the EGR valve, plugs and wires this coming weekend. I've got 238k on the truck so I can justify replacing some parts just because it's time but I'd like to know more about how the computer update works (if at all). Thanks!