Both my machine are Viking..I love them..I learn the hard way..sometimes it isn't the machine..but the person running it..doing just some little thing wrong..question to ask ur self..did it always do this..if answer is no..then as said it may need a over haul by someone school in it..must cheaper than a machine..if after u do that..it still has trouble.and u are sure it isn't u..then look into a new one..it really does take a lot to wear out most machine..if u need an excuse to ease ur mind for a new one..lol.go for it..