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Speedometer Calibration for 2003 Rangers, via Forscan?


bhgl

Well-Known Member
Joined
Feb 28, 2024
Messages
379
City
Northern Ontario, Canada
Vehicle Year
2003
Engine
3.0 V6
Transmission
Automatic
I know older rangers used a wyrm gear setup, newer ones used the ABS sensors, but there seems to be a weird gap from 2001-2003 in which they use a VSS sensor on the output shaft of the transmission.

I have forscan downloaded using the free extended license, I'm able to detect and open up the PCM, and GEM, but I have no idea what I'm looking at, nor what values if any ought to be changed, the speedo is not too far off since the tire's I went to are pretty similar in diameter. (well actually the needle itself is 20kph off but that's unrelated to values in the truck).

Any help as always is greatly appreciated, I can post pictures once I'm done work.

Thanks!
 
@lil_Blue_Ford

You had mentioned using Forscan on a previous thread to change my tires size, does this look familiar to you at all? I only have these three option under the configuration and programming menu.

1715031860520.png
 
He mentioned doing a calibration adjustment on his green ranger to me but couldn't remember the details other than you needed rotations/mile or tire circumference in mm. I'll be watching to see if he remembers more.
 
@lil_Blue_Ford

You had mentioned using Forscan on a previous thread to change my tires size, does this look familiar to you at all? I only have these three option under the configuration and programming menu.

View attachment 110631
Honestly, offhand, I do not remember what it was. Currently I’m not home and won’t be for a few days and my laptop is there. I had thought about bringing it with me but most of the time when I make this run I don’t have time to do much beyond what I came here for so unless I need it, it’s useless gear to drag along. So when I can get to my laptop and figure it out, I’ll try to remember to update. Otherwise, probably remind me like Friday or Saturday.
 
Honestly, offhand, I do not remember what it was. Currently I’m not home and won’t be for a few days and my laptop is there. I had thought about bringing it with me but most of the time when I make this run I don’t have time to do much beyond what I came here for so unless I need it, it’s useless gear to drag along. So when I can get to my laptop and figure it out, I’ll try to remember to update. Otherwise, probably remind me like Friday or Saturday.

Hey @lil_Blue_Ford, was wondering if you had the chance or opportunity to take a look at the tire calibration deal. I also forgot to remind you last week haha
 
Hey @lil_Blue_Ford, was wondering if you had the chance or opportunity to take a look at the tire calibration deal. I also forgot to remind you last week haha
:icon_rofl::icon_twisted:

So, I was looking at my laptop the other day trying to remember what I needed it for, decided I wasn‘t gonna have time to do much the next couple days, and left it behind. So it’s at home and I’m not currently, lol.
 

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