Heat, lack of lubrication, or coolant in the cylinders or oil pan.
your coolant flows through them.
shop vac
sounds like bad head or gasket do compression test on cylinders
Coolant leaking into any cylinder is a clear indication that the head gasket has blown.
Low coolant level.
when u have low coolant
The fuel in the cylinders exploding
It doesn't. Coolant leaking into the cylinders is usually caused by a bad head gasket, cracked head or cracked block.
It is possible that the gasket could leak between cylinders. The overheating and coolant loss would happen if the gasket was failing around the coolant passages.
Normal causes are low coolant and an inoperative radiator fan.Normal causes are low coolant and an inoperative radiator fan.
Check for "fog" or smells coming from the heater core, indicating a heater core leak. Check the oil for a milky color in case coolant is leaking into the oil. If these areas are ok, then perform a pressure test on the cylinders, as there is probably a blown head gasket allowing coolant to leak into the cylinder and be lost through the exhaust.