Engine Cooling System and HVAC

Front

This part is vital to a car engine's operation because it ensures the coolant keeps moving through the engine block, hoses and radiator, and maintains an optimum operating temperature.

Back

Front

What is the function of a gate that remains shut until the coolant reaches a set temperature, at which point it opens and lets coolant pass?

Back

Front

This is used to measure the temperature of the coolant/antifreeze mix in the cooling system, giving an indication of how much heat the engine is giving off.

Back

Front

What is the function of a Radiator?

Back

It transfers heat from the hot coolant that flows through it to the air blown through it by the fan.

Front

The _______ is a vital component of the cooling system. Its function is to store excess coolant fluid until required. You can locate the reservoir by following the hose from the radiator. Choose the best answer.

Back

All options are correct because they all mean the same thing.

Front

This is the heart of the A/C system. Driven by the serpentine belt, it pressurizes the refrigerant that cools the air. It also senses temperature changes.

Back

Compressor

Front

Like a miniature radiator that is usually found in front of the actual radiator, it turns hot refrigerant gas into a condensed cooler refrigerant liquid.

Back

Condenser

Front

Also called the Orifice Tube, its job is to constantly monitor the pressure and temperature of the A/C system to determine the exact amount of refrigerant that can safely enter the evaporator.

Back

Thermal Expansion Valve

Front

The safety net responsible for trapping all harmful debris, moisture, and liquids from reaching the compressor and other vital parts of the A/C system. It separates gas from liquid, removes moisture, and filters out contaminants.

Back

Receiver/Drier

Front

Whereas the engine's air filter ensures clean air gets to the engine, the _____ stops contaminants such as dirt, dust, smoke, smog, pollen, mold spores, and exhaust gases from entering the cabin of a vehicle through the heating, ventilation, and air conditioning (HVAC) system.

Back

Cabin Air Filter