A car sits in a flooded street near the ocean ahead of Hurricane Sandy on October 29, 2012 in Atlantic City, N.J. If you're in the market for a car, we've got a list of tips to make sure you avoid buying one that's been flood damaged. - 

Hurricane Sandy flooded about 230,000 cars. But many of these marinated vehicles are back on the market, sold for scrap or to buyers who are looking for a deal. Some unscrupulous sellers are engaging in what’s called “title washing" or altering the car’s paperwork to disguise flood damage. Here's a primer on how to avoid buying a Hurricane Sandy Lemon.
Imagine, if you will, the following scenario:
Innocent buyer: “Is this the car?”
Shady Seller: “Yes it is. This is the car that got me through college. It’s a great car.”
Innocent buyer: “Are those plates from Jersey? I thought you said you were from Texas - so the car is from Jersey?”
Shady Seller: “Yeah, by way of Texas.”

"This is definitely a car to be suspicious of," says Philip Reed, senior consumer advice editor for auto website Edmunds.com. A car from the northeast that’s been moved, shortly after Sandy, is a big red flag.

One of many, he adds. "There are a number of other signs that will definitely trigger suspicion, and one would be headlights that had condensation on the inside. Headlights. Taillights."

Ten tips to avoid buying a flood-damaged car In the market to buy a used car? Here's some advice on how to avoid getting stuck with a Sandy lemon.

Then there’s smell. Nothing says hurricane damage like Eau D’mildew.

"Aside from odor, you can look at things like peel up the carpeting, " notes Frank Scafidi, director of public affairs at the National Insurance Crime Bureau, a nonprofit group that fights insurance fraud. "In the trunk. Look at any place where water could have collected. If you see mud or dirt in there, that's a sign."
But experts say it's equally suspicious if there's no dirt under the hood. A little oil residue on the engine is normal. A shady seller may have steam cleaned the engine to hide any damage from salt water. A mechanic can determine if a someone went to that extreme.

The first thing you should do, says Reed, before you take a trip to look at a car, is run a vehicle history report from a site like Carfax. The site has a Mascot,  the “Car Fox,” who will tell you in a little cartoon bubble on the screen, if records of flood damage were removed. If it does raise red flags Reed says, don’t waste your time.