YEs it should!! the tech is trained to accomplish all that > when a car comes in they cannot let the car leave if there is still something wrong like the radiator not being flushed after changing the manifold gasket, your tech was probably hoping that you would pay the extra cost.
more than likely you need a new radiator for it, when you install it back flush the engine.
if it is just a blown exhaust manifold gasket it can ruin your valves, so replace it correctly and make sure everything is clean before putting on the new gasket
It could be a head gasket or a cracked head. Look at the exhaust manifold for each cylinder on the side that has the white smoke, the cylinder that has the leak will cause that port on the manifold to get super hot. One way to quickly identify which port is to spray some cheap black (or color of choice) paint on the exhaust manifold and fill the radiator and start the engine. The paint on the bad cylinder will burn off first.
Oil in the radiator is usually an indication of a leaky head gasket.
Valve cover gasket
You may have the problem of your intake manifold gaskets. They are a problems on the lumina. I had to have mine replaced due to the same thing. Also check if your coolant is mixing with your oil if it is. Than it is definitally your intake manifold gasket.
you might want to check for a blown head gasket or a cracked head or block. espically if it loosing water out of the radiator with out leaking on the ground.
You either have a cracked block, blown head gasket, or intake manifold gasket leaking coolant into the engine oil. You have bad problems.
The exhaust manifold needs to have a gasket in place to help seal the juncture between the manifold and the engine. After the gasket and gasket sealer are in place, tighten the bolts for the exhaust manifold. The exhaust pipe can then be replaced on the new exhaust manifold.
An exhaust leak is usually the result of a bad gasket or a cracked manifold. For a proper fix, either the gasket or both the manifold and the gasket must be replaced.
It could be a clogged radiator or cracked head or bad head gasket.
radiator cap
bad gasket. needs replaced
It could be a head gasket or cracked head. With the engine cold, take the radiator cap off and crank the engine. If the head gasket is bad coolant should shoot out of the radiator. 12 inches to possibly hitting the hood.
The manifold gasket is the same as the plenum gasket. The manifold gasket is a barrier between the manifold and the engine block.
I just had the intake manifold gasket replaced on my 96 century yesterday and my bill was $450 but my gasket was only leaking out. If its leaking into your oil it may be more.
If leaking at floor when flushed, wax ring needs replaced. If water leaks between tank and bowl when flushed, tank to bowl gasket needs replaced.