I would say very carefully. Just kidding. I am not sure. I would suggest maybe asking one of your friends or neighbors maybe they would help you out so you don't have to go to a mechanic and have to pay more. If you don't find your answer here. My mom baught a used Yukon once a car though it didn't make it only down the street for a few days then it was gone. The Yukon cars were poorly made is what I believe. But then again I guess it all depends on who owned it before but I have not heard too many good things about them. But I believe there is a SUV that is a Yukon and I hear better things about those.