Cooling system

1995 SUBARU LEGACY
300,000 MILES • 2.2L • AWD • AUTOMATIC
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ROCKIE WIMER
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  • 1 POST
My car is leaking coolant when it is not running. I found the leak and there is a crack in the plastic piece that the lower radiator hose is connected to. I just replaced the radiator and the hoses. What is that plastic piece called? how do I fix it? And why does it only leak when the engine is turned off?
Jul 18, 2017 at 1:02 AM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
it will be the thermostat housing. the leak will be there all the time under pressure, when the engine shuts down, heat sink can raise the system pressure a little and you may notice the leak more at that time.
Jul 18, 2017 at 5:30 AM
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