Wrong mixture make sure you have pre diluted/mixed coolant/antifreeze.
Bubbling coolant usually indicates a head gasket problem...
change the coolant fan relay
thermostat is stuck shut
headgasket leak and exhaust gas is getting into the coolant
thermostat or blown head gasket....
1) Your engine is overheating and the coolant is boiling. Or 2) Exhaust is leaking into the coolant, probably through a bad head gasket or cracked head.
The coolant level is low in the truck.
/the water circulating noise could be low coolant in the system. If the coolant is bubbling in the overflow bottle, then check for a blown head gasket causing the noise.
It is probable that you have a blown cylinder head gasket. It's possible you need a new thermostat. Depends on where it is bubbling from. From the top of the engine? Cylinder head gasket. From the overflow on the coolant reservoir, thermostat.
You have a cracked head or a bad head gasket. Don't drive it, you make cause more damage doing so.
Trapped air trying to pass thru the heater core. Check the coolant level, make sure it is full.
Mine is making a similar noise. Steam is passing through the coolant overflow tube as soon as the motor is shut off. The tube is connected to a nipple just under the radiator cap and the tube travels to the bottom of the coolant reservoir. The coolant in the reservoir then bubbles