Having transmission issues.
When I put the vehicle in D, it feels like the trans is shifting in and out of gear or like the torque convertor is locking and unlocking. Its pretty constant and seems to stop once the vehicle is not under acceleration.
I can put the trans in 1,2,3 position and take off and manually shift and it will not do this.
Reverse seems to be fine.
Only code I have is the keep alive voltage is low.
MiniMax tuner just installed, egr/dpf delete.
New engine rebuild.
Any ideas of the problem or where to start looking.