Have an old EZ guide 500 with EZ Steer that I plant with. Dust is horrible so decided to move it into the 2188 for beans. If I have it on the steering wheel solid enough it won't slip, it acts like it doesn't have power to turn the wheel. And if I grab the roller, even turn it backwards, it won't manually disengage. It's basically just swerving all over. Did a full recalibration and measured everything. 

Is my motor bad? 

T2?