Auxillary heater hose connections may develop coolant leaks on Plymouth Voyager

The auxiliary heater hose connections (that are routed to the rear heater under the vehicle) can develop coolant leaks.
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Average mileage: 143,600 (120,000–179,802)
4 model years affected: 1996, 1997, 1998, 1999
6 people reported this problem
2 people shared problem details
1998 Plymouth Voyager179,802
We are having a coolant leak problem. We cannot tell so far if its coming from the rear heater core, if the vehicle is equiped with a auxiliary condenser if that is leaking, if its coming from the pipes or hoses of if it is coming from the front heater core. There is no flooding in passennger apartment. Water is dumped onto the ground as soon as car is started. It comes from the middle of the car on the bottom on the frame.
1999 Plymouth Voyager131,000
Started over heating, added coolant. Noticed leak in center of car by passenger seat. Cut portions of rusted pipe. Went to auto zone and got 5 feet of 5/8" black tubing and 2 1" hose clamps. Noticed additional leak and replaced thermostat and thermostat housing which was cracked at the bolt.
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