Where is the car air conditioning expansion valve located?

[PrestonAnn]

Car air conditioning expansion valve is installed at the inlet of the evaporator. Here is the detailed introduction of the expansion valve: 1. Symptoms of a blocked expansion valve: When the car air conditioning is turned on, there will be no cooling effect. Measuring the air conditioning pipeline pressure with a pressure gauge will show excessively high high pressure and excessively low low pressure, indicating expansion valve failure. 2. Symptoms of a damaged expansion valve: The low-pressure pipe is not cold to touch, the dryer and condenser are frosted, abnormal high and low pressure, abnormal temperature of the high-pressure pipe and other faults. 3. Function of the expansion valve: The expansion valve has a throttling effect. The high-temperature and high-pressure liquid refrigerant becomes low-temperature and low-pressure misty hydraulic refrigerant after passing through the throttle hole of the expansion valve, creating conditions for the evaporation of the refrigerant.