K kRon1k New member Joined Mar 19, 2022 Messages 1 Reaction score 0 Points 1 Mar 19, 2022 #1 Hello Bought an 03 suburban. hard 1-2 shift, shift flare for 2-3, then trans went. only first gear replaced trans w 22k miles transmission. still does the same? possible pcm problem? anyone run into this before? thanks
Hello Bought an 03 suburban. hard 1-2 shift, shift flare for 2-3, then trans went. only first gear replaced trans w 22k miles transmission. still does the same? possible pcm problem? anyone run into this before? thanks
zora Staff member Joined Apr 24, 2012 Messages 5,518 Reaction score 139 Points 63 Mar 19, 2022 #2 Did you run diagnostics on the transmission before replacing it. Did you rule out a bad transmission control module?
Did you run diagnostics on the transmission before replacing it. Did you rule out a bad transmission control module?
