yes, but only partially. otherwise coolant will spill all over the ground. its toxic to pets and bad for the environment.
When changing the antifreeze first drain the old fluid by disconnecting the lower radiator hose. Plug the hose in and add coolant to the radiator. Check for air in the system, bleed if necessary.
generally located where the upper radiator hose meets the block, under the throttle body Follow the upper radiator hose to the engine, there should be the thermostat housing. And there is no drain plug on an 2002 Monte Carlo 3.8 v6 , so you will lose less antifreeze if you just disconnect the upper radiator hose from the thermostat housing then hold that hose up. I only lost maybe a quart of antifreeze.
There is a drain plug just below the lower radiator hose.
Drain the radiator into a container. Remove the upper radiator hose at the engine and remove the 2 bolts in the thermostat housing. Remove the thermostat and clean both surfaces. Install the new thermostat and upper hose. Top off the antifreeze.
Drain the antifreeze.
Normally on the bottom of the radiator. You can always just remove the lower radiator hose to drain it.
You have the drain the lower radiator hose, 6.0 liter do not have a drain valve.
It is in the bottom of the radiator but sometimes it is easier to remove the lower hose.
you can either pull the hose for it or you can usually just open the drain plug on the radiator
find where the upper radiator hose goes to the engine block. The thermostat is located below the housing. You will need to drain part of the antifreeze then remove the housing the thermostat can be popped out with a screw driver. be sure to clean the old seal completely before reassembly
There maybe 2 ways of changing your antifreeze 1.Valve on bottom of radiator turn and let it drain. Caution do this when engine is cold!! 2. Remove the rad hose from the bottom of rad, drain and refill by rad cap and check your overflow reservoir top off if needed.
Bottom of radiator. If it has none then remove the lower radiator hose to drain the radiator.