My 1999 Dodge Grand Caravan has been reliable and driven primarily by my wife for transportation of children. We have had no problems with this, but I was following the maintenance guides and took it in to the dealer for new spark plugs. The dealer informed us that the tensioner on the serpentine has seized. This cost was $ 215.00 to replace the tensioner and the belt, so I did it to avoid the risk of future problems.
I checked on this website to see if there were any recalls, but if you own a 1999 model, you may want to get it checked out sooner. Luckily, the belt never slipped off. The dealership said that vehicle could easily last over 150,000 miles as long as I continue to maintain oil changes and follow the maintenance guides. Check out the maintenance schedule and it will tell you to check that belt sooner.
Overall, we are very pleased with the vehicle and would probably buy another one. My first vehicle was a 1989 Dodge Omni and I put 105,000 miles on it.
I own a 1993 Dodge Caravan. It is used for family purposes. I just put four new tires on it and it still runs GREAT. It has 172,560 miles on it. This year the paint started to oxidize in a few spots and there is only one small rust spot of the rear wheel well. We'll keep using it until it dies. We love our Caravan!