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[Gofaster23]

Effective 8/24/2008 FSA 08B07 is suspended until further notice. There's nothing wrong with the program, it's the software that us tech's use to perform the FSA. The IDS software is flawed and in some cases, while uploading the calibration onto the PCM or right after it's finished the IDS software freezes or crashes. When this happens it basically erases the Transmission Control Module and the data cannot be retrieved. When the TCM is blanked out the engine will not crank because the CAN network does not see the TCM (TR sensor indicating park or neutral). Replacement of the TCM is required and can take a long time to get one since it's usually on back order. Just a heads up, if you've had 08B07 done don't worry, the calibration is not the problem. FYI: All you tow truck/wrecker/construction guys that idle all day long....... change your oil every 5,000 miles or 200 hours as per your PSD owner's guide supplement in your glove box. I saw 6 trucks this past week that had 4,000 to 8,000 miles on the odometer but according to the hour meter they had 15,000 to 22,000 miles on the engine. 22,000 miles without an oil change on a 6.4 is no bueno.