Transcript for Experts warn of the dangers of flood-damaged cars
Warning about flooded cars up to a million may have been damage from hurricane party and Irma. And now they may soon look better used car dealership near you David Curley had more what you need to look out for good morning Dave. Michael this can happen with in days cars could be cleaned up you might start seeing as you might see them on used car lots and these flood cars. Can be a ticking time bomb. Burma's Florida flood didn't spare cars this morning the owner Kelly blue book estimating that between 204000. Cars in Florida. May have been flawed it and that's on top of Harvey's soaking of Houston these storms flooding somewhere between half a million and one million vehicles. As we said these cars can show up for sale in a matter of days in fact even before the storms there was a 20% increase in flood cars. Back on the roads in just the past year according to car facts cars that could have hidden problems. Water and electronics only that's right it's like putting a computer until about it's really impossible to tell when it's gonna break the systems down but sooner or later. The mechanical electrical and the safety systems could be compromise which puts you your family in danger. Some vehicle owners who may not be insured may try to hide what's happened to their cars the folks a car facts showed us after hurricane sandy. How in just five hours they could take this flood car. And make it look presentable for sale in fact after that storm dealerships dealt with flood cars we found out the carpet was damp. They did try to wet back it in fact after that storm dealerships dealt with flood cars and knocking at the boards that information to us. Because it would decrease the value of their vehicle so what to do before buying a used car. Get a report on the vehicle and make sure you take it to the mechanic who could look for signs of trouble. Flooded cars can look great they can run perfectly for the short term. But the long term probably sooner than later postcards are gonna break down because are literally rotting from the inside out. The experts estimate that half of these cars that are in floods from events like Irma and Harvey can actually end up back on the road Michael that means. A half million flood cars. Could end up back on the roads. And you have no idea about it is now you admitted having a mechanic look at the card you might by David do you think that's essential. It really is essential Michael because if you get a report on the car the question is that they actually say that it was a flood car wears a mechanic. We'll look at some of the electronics and these are filled with electronics that Watergate inside here. Is it starting to corrode a mechanic and take some of this apart and look for those signs of corrosion. To give you a sense of whether or not this car has been in a flight. All right thank you David if the deal too good to be true it probably is.
This transcript has been automatically generated and may not be 100% accurate.