Published: Oct 29, 2013 5:18 PM EDT

FORT MYERS, Fla. -- It's your money and here's a way to not get ripped off. Car dealers are warning that thousands of cars, damaged by the floods of Hurricane Sandy, could be resold as used.

The good news is that right now it's both easy and free to find out if a car was once flood damaged. At flood.carfax.com you can enter the VIN of a car to find if it was ever reported as flood damage. The previous owner would have to file a claim with their insurance company.

Las year, the National Automobile Dealers Association estimated that 200,000 or more flooded cars could be resold as used.

It's not illegal to re-sell a flooded car, but dealers are required to disclose it.

If you're thinking about buying a used car and you're a little worried, here are a few tips. First check the VIN number. Next you can hire a mechanic to inspect the damage. Experts also say the "sniff test" might work for you as well.