bad intake manifold gasket or a blown head gasket, check your oil level and see if the oil looks milky colored.
i would like to know what would cause the miss firing in Chevy Malibu
the most common cause would be a stuck closed thermostat.
A blown head gasket.
would a cracked blocked cause a car to bubble antifreeze inside the reservoir of a 97 ford taurus ?
No. The problem is most likely your heater core. Ask a mechanic.
cracked head or bad gasket
frozen pulley
If it is motor oil in the anti freeze, then it is either a cracked head, cracked engine block, or a head gasket blown. If it is transmission fluid in your antifreeze, then the radiator is leaking from the transmission cooler ----- although usually that would cause antifreeze to be in your transmission fluid.
You probably used the wrong type of antifreeze. You should use the type for aluminum heads.
if it smells like antifreeze inside the cockpit then your problem is the heatercore, since you can't see it.
Headgasket!
YES