Auxillary heater hose connections may develop coolant leaks on Plymouth Grand 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: 174,331 (115,000–249,200)
3 model years affected: 1996, 1997, 1998
9 people reported this problem
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problem details
1996 Plymouth Grand Voyager 190,000 mi,
Had leakage from water pump. Replaced pump and thermostat. When I did before I got out of the drive way something busted and I lost all of the coolant from the passenger side of the motor. I didn't know about the lines to the back. Haven't got it repaired yet. Wondering if I could do it myself.
1998 Plymouth Grand Voyager 153,000 mi,
the rear heater hose ruptured by the right rear wheel
Plastic quick connect rotted & broke off on heater hose. Not fixed yet.
1996 Plymouth Grand Voyager 164,456 mi,
heavy leak from piping