I need help. I have a 2002 Sebring LX 2.7 with 142,000 miles that leaks cool coolant. Have replaced thermostat and gasket, all hoses are snug, What's next? Coolant leaking from same hole as thermostat. Amout of leak same as before replacing thermostat. I'm trying not to have to replace water pump (9hr job), unless absolutely necessary.