How do you fix the latch on the fuel door of my Cadillac Eldorado?

To fix the latch on the fuel door of your Cadillac Eldorado, first, ensure the fuel door is not stuck due to debris or rust. If it still won't open, check the latch mechanism for any obstructions or damage. You may need to access the latch by removing the inner panel near the fuel door. If the latch is broken, consider replacing it with a new one from an auto parts store or dealership.