i need help with my cadillac converter
My engine light has been going on and off for the last few months, and I took it to auto zone and they said it was the "Cadillac converter warm up." They also said that you can only get this part at dealership and it's about 600 dollars. I don't know if the senors is wrong with it or if they could be a cheaper way to fix it. I'm a girl and don't know much about cars so i was hoping someone knew something to help. Thank you so much!