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Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
- Joined
- Sep 20, 2009
- Messages
- 34,623
- City
- Dillsburg PA
- Vehicle Year
- 1987
- Engine
- 4.0 V6
- Transmission
- Manual
- Tire Size
- 31X10.50X15
Because after about 2000 that is how they come. Too many possible calibrations and options that are PCM controlled to have a turn-key unit. Gotta program them to the vehicle.
A lot of modules in later vehicles, like the ABS stuff for AdvanceTrac vehicles, depends on a VIN verification process with the PCM, so you have to flash the VIN into it.
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