Originally Posted by feh728
What and where do I find a "flash tool"?
A Ford dealer or a well equipped independent shop should have the special diagnostic/programming tool for this. You'd have to pay them for the reflash labor - the tool is far too expensive to consider buying for home shop use.
The programming procedure for 2001+ is different and is done in the PCM. For these Rangers, you can go the dealer reflash route or use a flash tuner like an XCal2.