I have a 2000 Dodge Durango with a 5.2L Magnum engine. It has 42,000
miles. On March 29, 2005, it started leaking anti-freeze coolant from
the bottom of the truck. I took it to the dealer (since it might be a
warranty fix), and they indicated that 3 of the 16 freeze (core) plugs
were leaking due to rust. Luckily, this is still covered since I am
under the 50,000 mile warranty for this part. My problem is that I am
having a hard time understanding how could this rust so easily and so
quickly. I have never put water in the radiator well, just coolant a
few times to top it off. I have never flushed the system since it's not
time yet and I follow maintenance plan which says to do this at 50,000
miles. Is this a design problem with the SUV Truck? Thanks for your
responses in advanced.