check the thermostat to see if it is opening properly (you can remove it and place it in a pan of water on the stove and heatthe water until it opens oh yeah don't forget to use a thermometer to find out what temp. it was) you should also check your antifreeze mixture for accurracy(try that first) if none of these work try flushing your heater core to see if it is stopped up
This could be an indication that you do not have enough antifreeze. The car heater will not work when there is no liquid in it. also the car will overheat.
only 2 things can cause this. The most likely is that it is overheating... a lot the least likely is that the indicator is faulty or the wrong type.
The engine is overheating.
Antifreeze helps prevent a car's engine coolant from freezing in cold temperatures and also helps regulate the engine temperature in hot conditions. It prevents the cooling system from overheating or freezing, ultimately protecting the engine from damage.
This is used to keep the motor from overheating and from freezing. Thus the name "antifreeze" and "coolant".
You have to disconnect the battery for couple minutes.
Ethylene glycol mixed up to 50% with water, lowers the freezing point of the mixture, while remaining an excellent heat transfer medium. It protects the engine from either freezing or from overheating.
Engine overheating is a good indicator. Some people get them flushed regularly as part of regular maintenance.
Insufficient protection against freezing in cold weather or severe overheating.
A 1997 Chevy Cavalier uses a standard 50/50 mix of antifreeze coolant and water. This keeps the engine from overheating and from freezing in the winter.
Ethylene glycol mixed up to 50% with water, lowers the freezing point of the mixture, while remaining an excellent heat transfer medium. It protects the engine from either freezing or from overheating.
Overheat IndicationYou've answered your own question. If the "overheat indicator" is indicating overheating, then the engine and the coolant is OVERHEATED!!!!!!Overheating is a serious situation and any indication of such requires that a qualified automotive technician check the vehicle and determine the cause for the overheating, and correct it to prevent permanent, and possibly very expensive, damage to the engine.Or, another remote possibility is that the engine/coolant temperature sensing/indicating system has become defective.
The benefits of antifreeze is it helps keep your engine from overheating by keeping the water cooler in hot weather and from freezing in the winter so it can circulate and cool the engine. The hazards are it is extremely poisonous, especially to animals.