I have a Kenmore 158 series sewing machine that only sews in a straight line no matter the stitch setting. What could be the problem?
Any stitch requiring the needle to go side-to-side won't work. I've cleaned and oiled the entire machine. The needle is stuck slightly off-center. It will move from one side to another if I physically push the needle, but after one stitch it will immediately go back to the off-center position. The tension is not a problem and I'm using a new bobbin. I have rethreaded multiple times and the problem persists. Any suggestions would be very helpful!