If your symptom is that you power the engine off and then, moments later, coolant starts to spray out of the radiator cap/coolant reservoir then you have a cracked cylinder-head and/or broken/failed head-gasket.
What is happening is the crack in the head (or tear in the gasket) is letting combustion gases into the cooling system. These gasses collect at the highest point and effectively "air-lock" that area keeping coolant away from the metal. When the engine is shut off these gasses shrink and allow coolant to touch the blistering-hot uncooled metal surface and instantly boil the coolant into steam which provides the pressure that is driving out your coolant.
If the gasket was the original cause it is very likely that by running it this way the cylinder-head is now ruined and you should expect to have to replace it.
Hope this helped
Might be a leaky heater core, the anti freeze in the coolant has a sweet smell/taste.
something on that circuit is shorted, the short needs to be repaired.
Low coolant level.
when u have low coolant
The main causes of cooling system failure in a 1995 Mitsubishi Pajero after traveling 800 km may include coolant leaks due to worn hoses or a damaged radiator, a malfunctioning thermostat that prevents proper coolant circulation, or a failing water pump that can't maintain adequate flow. Additionally, the accumulation of debris or corrosion in the cooling system can hinder performance, and low coolant levels from evaporation or leaks can lead to overheating. Regular maintenance and checks are essential to prevent these issues.
Normal causes are low coolant and an inoperative radiator fan.Normal causes are low coolant and an inoperative radiator fan.
Most blowouts are due to under inflation, but can also be caused by impact or puncture damage. Sometimes, a manufacturing defect can lead to a blowout, and only then is the manufacturer at fault.
Low coolant? Bad sensor?
Low coolant
The coolant has oil in it. Possible causes are a failed headgasket, or a leaking oil cooler,
Excessive pressure, worn out primer pocket in a reloaded cartridge, bad headspace on the firearm, etc.
Check to coolant level in the coolant recovery tank and radiator when engine is cold