Air in cooling system. Bleed the system.
Thermostat installed upside down or it is defective. Replace the thermostat and install it spring toward engine.
Cracked head. Head should have been inspected by a machine shop.
Head bolts not torqued to the correct factory torque specifications and gasket blew again. Check the torque and if they are loose you will have to do it all over again.
Water pump or cooling fan defective which was the cause of the overheating and gasket blowing in the first place. Check cooling fan for proper operating. Check pump to see if it is actually moving coolant throughout the system.
Drive it for a bit if it doesn't get better have a compression test done to see if you have bad ring or valves.
There are many gaskets on any car engine. If you are asking about head gaskets, they are between the cylinder head(s) and the engine block. The cylinder head is under the valve cover. --------------
The most common causes of overheating and shaking in a vehicle are the head gaskets. A blown head gasket will produce overheating and shaking and may lead to a cracked head.
2
Yes.
it means you have a cracked head or blown head gaskets. does the car overheat?
bad water pump, low coolant, blown headgaskets, if the car has been overheated, there is a good chance the head gaskets are blown
Water is in your engine. Check intake and head gaskets.
Head gaskets are expensive but can disable a car if not treated. The cost for a new head gasket for a Toyota is $177.12.
Go to your local parts store and buy a Chilton's manual for your car. There is a lot involved in changing the head gaskets and it's not really feasible to tell you all you need to know here.
it's probably the head gaskets.
no