Kicking tires on a 1998 Town Car with the 4.6. It, supposedly, only has 73k miles on it but the older lady selling it says it needs a timing chain. I know the 4.6 is known as a tremendous motor. So I wonder why, with such low mileage, this car may need this work. Any thoughts? I once had a '97 Crown Vic and it was a really good car. The price is right on this one *IF* it's only a timing issue.