1991 toyota 4 runner, just replaced the head gasket, now if i use a thermostat it will over heat. also, I have no heat coming into the vehicle in the front or back seaqts.
You might have air trapped in the cooling system causing the no heat to the inside.If you have a bleeder valve on the thermostat housing open it up while filling the system but this is done while the engine is running and curculating the coolant system.And also leave the heater in the on position on high while the engine is [email protected]
