Q: I have a classic Cadillac Eldorado, and the digital odometer is not working. How can I get this fixed? A: In many cases, this is a result of a soldered connection that has failed over the years.

Odometer tampering might not make it to our list of the 10 worst car scams, yet a lot of car buyers still fall for it. If you come across a low-mileage used car that seems like a one-in-a-million find ...