Reoccurring problem: When the engine is shut down after a drive, coolant drips out of the overflow spout of the overflow tank. Then, the tank goes empty and the cooling system eventually goes empty. I don't want to overheat the engine and keep adding 50/50 mix to the over flow. Why does the coolant evacuate the tank? 1998 Chrysler Town & Country 3.8L
It appears the tank system is(overflow) is is doing its job, but the cooling aystem is releasing too much and ytying to recover every bit ejen it cools down. Ck the radiator cap pressure rating. It shoul be between 12 and 4 lbs. Hane the old cap checkrd or just get a new one. If it's not the cap, The next thing is whether or not you have a pressurization of the cooling sysrem due to combustion leakage. This can also be tested for be a shop when the cap is tested, You can chk for that yourself by doing the following. Get a container filled with clear clean water. Submerge the overflow recovery hose end in the container. The end taht was in the recovery tank. Make sure your cooloing system/radiator is full and start your engine. Let everything stabilize. Watch your container for bubbles that contain smoke. Little snoky bubles and coolant being added to your container. If either is present you have a head gasket lea or a bad head pressurizing the cooling system.. And yes, you will end up with an overheated engine with a fever. So if there are any more Questions, feel free to ask.
Head Gasket over pressureising the coolant system, solution check head Gasket/replace. Does the water tank smell of smoke or burning
About 100K miles? sounds like a blown head gasket is allowing coolant to be pushed out the exaust,and combustion pressure is pushing fluid out the overflow.have your compression tested.
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