The defrost system on a 1992 Chevy Caprice works by using the car's heater to heat the air that is blown through the defroster vents. The heater core, which is located behind the dashboard, is heated by the engine coolant. As the air passes over the heater core, it is heated and then blown through the defroster vents, which are located at the base of the windshield.
The defrost system is controlled by a switch on the dashboard. When the defrost switch is turned on, the heater fan will come on and the air will be directed through the defroster vents. The heater can be turned on high or low, depending on how much heat you need.
The defrost system also has a "max defrost" setting, which turns the heater fan on high and directs all of the air through the defroster vents. This setting is useful for quickly clearing ice and snow from the windshield.
How to Use the Defrost System
To use the defrost system, simply turn on the heater fan and select the desired heat setting. If the windshield is icy or snowy, you can turn on the "max defrost" setting.
The defrost system will work more efficiently if the windows are rolled up and the air conditioner is turned off. This will help to keep the warm air inside the car.
Troubleshooting
If the defrost system is not working properly, there are a few things you can check.
* Make sure that the heater fan is turned on.
* Make sure that the heat setting is turned on high.
* Check the heater core to make sure that it is not blocked.
* Check the defroster vents to make sure that they are not blocked.
If you are still having problems with the defrost system, you may need to take your car to a mechanic.
