Auto A/C Expansion Valve Troubleshooting?

Answer In an auto compressor, liquid refrigerant under high pressure circulates to the auto air conditioning (AC) expansion valve, which removes pressure from the refrigerant to allow it to expand and con... Read More »

Top Q&A For: Auto A/C Expansion Valve Troubleshooting

How to Diagnose Auto A/C Expansion Valve Probe?

When liquid refrigerant is forced through a restricted opening, it changes from a liquid to a gas. This change of state causes the refrigerant to become cold, and as it passes through the system, i... Read More »

What Is an Expansion Valve?

Expansion valves are used in systems that need to carefully monitor the flow of fluids. Sometimes expansion valves are used to control gases, such as the natural gas mixture that is used to provide... Read More »

How to Adjust an Expansion Valve?

Thermal expansion valves maintain the temperature of the cooling unit inside a vehicle or external air conditioner by regulating the amount of refrigerant entering the evaporator. The expansion val... Read More »

How to Replace an AC Expansion Valve?

Replacing an AC expansion valve can be a difficult task and is specific to the model of vehicle, but it can be accomplished with a little patience. Many people find that accessing the expansion val... Read More »