#08-07-30-022: Hesitation or Flat Spot Between 56-80 km/h (35-50 mph) (Reprogram
I just purchased a used 2008 Saturn Outlook XR from private party. I had it checked over by a GM dealer and the Transmission Control Module has not had the current update. The GM dealer didn't really recommend the update because I would lose 0-2 mpg and it seemed to them it wouldn't help the longevity of the tranny. What has everyone else done and would you recommend doing the current update and losing the MPG? Thanks in advance.