Not likely. The engines that were used in the 98 Malibu (the 3.1 L v6 and 2.2L 4cyl) were both known to have head gasket issues. Usually on these engis, the head gaskets break down between the coolant and oil channels. That means that the engine could easily still have full compression on all cylinders, which would cause no difference in power. Have it checked by a professional before you damage the rest of the engine.
replace the head gasket
If the vehicle isn't overheating then it's probably not a blown head gasket. There could be a problem with the oxygen censor.
you have blown a head gasket
Overheating.
It is not wise to drive with a blown head gasket. If you continue driving with a blown gasket, eventually your car will over heat and the engine will seize up. This can cause accidents if it occurs while driving.
No, a normal tune up cannot cause a blown head gasket. A blown head gasket normally is caused by an engine overheating or by a defect in the gasket or head. If it happened right after a tune-up that is just a coincidence.
Blocked radiator or Blown head gasket
Yes but only for a little while. You will definatly notice a blown head gasket by looking for steam in the exhaust and water in your oil.
In a vehicle- a blown gasket caused by overheating, block warpage
White smoke from the exhaust indicates you have a blown head gasket or cracked head. Stop driving the car until this is repaired or you will do serious damage to the engine.
Overheating can cause this. Air bubbles escaping from the radiator is caused by a blown head gasket.
The main cause of a blown head gasket is engine overheating. Of course it can be a manufacturing defect but that is not common.