Coolant, or antifreeze, is essential to regulating the temperature of your vehicle. It’s also extremely toxic and designed to stay inside a closed system. If you’re seeing an overflow, it could be due to a radiator cap, thermostat, water pump, or radiator malfunction.

Let’s Get Started

1. Removing the Coolant Reservoir Overflow Hose.
2. Remove Coolant Pressure Hoses.
3. Remove Mounting Bolts.
4. Remove Coolant Reservoir Electrical Connector.
5. Remove Coolant Reservoir.
6. Check the New Coolant Reservoir.
7. Reconnect Electrical Connector.
8. Install the New Coolant Reservoir.

Most coolant reservoirs are made of out of durable plastic and are mounted on the upper right hand side of the engine compartment. If this occurs, you’ll have to replace the coolant reservoir: a rather simple process that most DIY mechanics can complete without too many complications.

When the engine is stopped a vacuum is created in the cooling system. The vacuum valve opens to draw coolant back out of the expansion tank and into the radiator to equal internal pressure with atmospheric pressure; prevents collapsing in components.

What can be done to prevent air from getting trapped in the cooling system when the coolant is replaced? Use the coolant exchange machine that draws a vacuum on the system or open the air bleeder valves while adding coolant. You just studied 10 terms!

water pump

The cooling system serves three important functions. First, it removes excess heat from the engine; second, it maintains the engine operating temperature where it works most efficiently; and finally, it brings the engine up to the right operating temperature as quickly as possible.

A water pump is a simple device that will keep the coolant moving as long as the engine is running. It is usually mounted on the front of the engine and turns whenever the engine is running. A fan belt that will also be responsible for driving an additional component like an alternator or power steering pump.

The two main requirements of an efficient cooling system are: 1. It must be capable of removing only about 30% of the heat generated in the combustion chamber. Too much removal of heat lowers the thermal efficiency of the engine. 2.

The major components of the cooling system are the water pump, freeze plugs, the thermostat, the radiator, cooling fans, the heater core, the pressure cap, the overflow tank and the hoses.

Types of Cooling Systems

• Central Air Conditioners and Heat Pumps. Central air conditioners and heat pumps are designed to cool the entire house.
• Room Air Conditioners.
• Evaporative Coolers.
• Ductless Mini-Split Air Conditioners.
• State of the Art Cooling.