One problem related to coolant leaking has been reported for the 2003 Dodge Durango. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Dodge Durango based on all problems reported for the 2003 Durango.
Never had any problems til we drove almost 5 hrs on vacation to gatlinburg and before we even got into town the check gauge light came on and realized the temp gauge was in the red. Never leaked coolant or smelled any antifreeze. The next day after letting it sit overnight it seemed fine no check light was on drove it back still no engine light on and temp was fine,few weeks later all hell broke loose! the valve train started ticking. Had it towed to the dealership (kings cjd) and found a failed rocker & tappet had replaced 4 days later was doing it on the driver side,took it back that's when it took them a few days to figure out it was leaking coolant down into the cylinders. Chrysler didn't have cylinder heads available it took over 2 months for us to get the part (not from Chrysler) as far as we know they still don't have the part available. 28 plus people are on a waiting list to receive cylinder heads that are still not available! repeated trips to the dealership for leaking valve covers on both sides,still dealing with issue of possible leak around crank seal on timing cover. Chrysler does seem to give a darn about our time and money wasted for the supposed repairs that are not fixed!! has anyone else reading this had any issues regarding cylinder heads???? I think when you have 28 plus people on the waiting list for the same part for the same make & model vehicle same engine 4. 7 v8 obviously their is a manufacture issue not an owner issue!!! that's just a taste of what is going on their is plenty more and Chrysler just keeps telling us im sorry and that's it im sorry!!! we have had several case mgrs and noone seems to be caring.