I need to reprogram the computer | Ford Explorer Forums - Serious Explorations

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I need to reprogram the computer

TheGasMan

New Member
Joined
January 16, 2011
Messages
4
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City, State
San Marcos
Year, Model & Trim Level
99 limited
Hi I have a 99 ford ranger that has been completly refitted with 99 ford explorer limited components IE sohc 4.0/5r55e trans/4405 t-case/ both axles with factory 4.10 gears/ complete wiring harness/dash/seets/center console/hud

now all runs great the issue is the xeplorer came with 245/75/16 tires 30in tall tires and i am using 32/11.50/15 tires the difference in tires has caused major noticable differences one going from 21 mpg average to 15mpg average
the speedo reading 5mph slow and it goes in and out of overdrive to easily
is there a programmer that i can get or someone near my neck of the woods that can be used to reprogram the computer to change tire size correct the speedo and possably get a little mor power
 












to me that seems to only be a patch i think reprograming the transmission and the computer is the way to go
 






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