T Tobymac19 New member Joined Sep 11, 2024 Messages 1 Reaction score 0 Points 0 Sep 11, 2024 #1 We just bought a 2017 GMC Denali, it shifts excessively from v8 to v4 for no reason. Short of installing a afm device, what is the fix. 52000 miles on it 2017.
We just bought a 2017 GMC Denali, it shifts excessively from v8 to v4 for no reason. Short of installing a afm device, what is the fix. 52000 miles on it 2017.
98trck Member Joined Feb 23, 2011 Messages 323 Reaction score 0 Points 16 Location Chandler Az Oct 24, 2024 #2 my 2011 6speed tranny drive it in manual 5th gear it stops the DOD ( displacement on demand) PETE
