Over sized tire speedometer correction
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Mountain Pass
Joined: Jan 2010
Posts: 232
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Over sized tire speedometer correction
Hello,
My Excursion 2001 7.3 4x4 currently has LT325/65R18 which is causing the speedometer to be off about 5mph. What parameters can be changed using FORScan to correct the issue?
TIA
My Excursion 2001 7.3 4x4 currently has LT325/65R18 which is causing the speedometer to be off about 5mph. What parameters can be changed using FORScan to correct the issue?
TIA
Tuned
Joined: Sep 2019
Posts: 418
Likes: 4
From: Tacoma, WA
Should not be hard to find, the older the vehicle the fewer options in the modules.
https://forscan.org/forum/viewtopic.php?f=13&t=2650
Mine only had the tire adjustment as a possibility but I had to change the tone ring size, also, to get it close. Now I am a few miles under on the speedometer. Mine was something like 600/112.
https://forscan.org/forum/viewtopic.php?f=13&t=2650
Mine only had the tire adjustment as a possibility but I had to change the tone ring size, also, to get it close. Now I am a few miles under on the speedometer. Mine was something like 600/112.
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