Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
East Coast Automotive Services
Your car or truck's AC system is under extreme pressure and the thermal expansion valve or orifice tube monitors the amount of pressure and the temperature of your A/C system. It calculates the precise amount of refrigerant that can safely go into the evaporator. A failing expansion valve or orifice tube often causes a vehicle's air conditioner to blow hot air.
Replace or Repair
- Expansion Valves: Too much refrigerant causes your evaporator to get too cold whereas too little refrigerant would result in inadequate cooling. The expansion valve is a complex valve that regulates refrigerant flow. This process of metering the refrigerant adjusts the flow according to the temperature of the refrigerant in the evaporator coil. Talk to one of the pro mechanics at East Coast Automotive Services, as this part can be replaced on its own and does not require the entire replacement of the AC assembly.
- Orifice Tubes: Unlike the expansion valve, the orifice tube is a simple fixed device with no moving parts. It therefore cannot vary the flow of refrigerant into the evaporator, but rather causes a permanent restriction in the system. However, like the expansion valve the orifice tube regulates refrigerant flow through the system and filters debris which may come through in its screen. Often fixing a "bad orifice tube" requires replacing the entire evaporator assembly.
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Recently had my Honda Pilot serviced at ECA. Steve and the team did an outstanding job. Courteous, knowledgeable, professional and fairly priced. No hesitation to recommend for any auto repair.
Peter Melnyk, 01/12/2022
Super nice. Dependable, the best shop we have been to. Thank you!
Tara Harmon, 12/21/2021
My 2011 mustang was vibrating when driven over 70mph. I took it to 2 other auto shops plus a dealer & the problem was not fixed. I took it to east coast auto & they diagnosed & fixed the problem quickly with a very reasonable price. The staff were knowledgeable & friendly. My car now runs like new again. Thankyou.
Jacqui Hayden, 11/23/2021