Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
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 Marty's Automotive, 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.
More AC Repair Services:
Luis was friendly and helpful. He made sure to explain everything that was wrong with my car and fixed it quickly! Will definitely be back.
Elise Elena Carr, 11/25/2022
I went here in May of 2022 for a few issues with my suspension, serpentine belt, and brakes. Mary at the front desk was awesome, and updated me very quickly throughout the day after dropping my car off to let me know of additional issues with the suspension they found. I was expecting the repair to take the better part of a week, they had it all done within less than 24 hours! Great service, car now drives like I just purchased it new. I highly recommend Marty's for complex mechanic work.
Erik DeKing, 06/06/2022
Im SO pleased with you! I intended on sending a thank you card! Im sending in both 20 year old cars. I appreciate that you're always there for us!???
Julie Hornback, 01/18/2022