I've taken apart everything I can see and cleaned well. The top thread pulls thru fine, no problems there. I think the issue is in the bobbin area. I've taken the bobbin casing out and cleaned well....but still no movement. I just don't know what else to do, other than taking it to the repair shop. Am just so disappointed that I won't be able to finish my sister's quilt today....was supposed to give to her tomorrow :cry: :roll: :-(