This morning I had the TSB 21-013-07 performed on my GCSRT8. 18191313 Module, Final Drive Control (FDCM) reprogram. SYMPTOM/CONDITION: A bump or a harsh shift is felt by the customer caused by the transfer case actuation. Customers describe this as either a harsh 1-2 shift or 2-3 shift. The transfer case clutch actuates at 20.5 mph for approximately 750 ms after each key cycle as directed via FDCM software to re-learn the clutch starting position. This can generate a torque pulse in the driveline under light to medium throttle conditions that can be construed as a transmission shift event. My Tranfer Case is quiet as it should be now. No Howling No clunk No slack/slop No shutter I am very happy, and will keep everyone posted on any issues. btw, 19000 miles on original fluid. http://www.wkjeeps.com/tsb/tsb_wk_2101307.pdf
has everyone already had this performed? I thinks it's pretty new. Has anyone else has success with this flash?
Just so it's clear, TSB 21-013-07 was issued last September and applies only to 2006-2007 Grand Cherokee domestic and international models. --Just noticed, this thread is in the LX section...
