my "studder" seems to be speed specific, the 35-40MPH range. But generally when I accelerate slowly in town traffic the transmission is in 7th gear when issue occurs. However, the same thing still happens in "S" mode while in a lower gear. My issue occurs during both "slow" acceleration and...
bought my 19 GT on November 28, 2018, build date 09/12/18, heard the rattle @ around 325 miles in similar fashion as PRO 5 described in his Jan. 27, 2019 postings
nothing at cold start or after idle adjustment. I have to drive about a 1/10 of mile @ low RPMs (1000-1400) to get to a main road...