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 Landmark Auto Group, 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:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


Reviews

I was able to come into Max's shop and have my AC problem diagnosed and fixed within a couple hours, with a fair price. This was after going to the dealership, and having them unable to find the cause of the problem.

, 05/22/2023

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Excellent Service Kind friendly, very honest. Professional Knowledgeable Quick service Best place I have ever been to for my car. Highly recommended I would never go anywhere else EVER BEST PLACE TO TAKE YOUR CAR!!!!

, 04/29/2023

A godsend. Had a large screw - washer & all - stuck in my driver's side front tire. Called assuming I would have to schedule an appt & was told I could come by same day (I was about 15-20 min. away in Kingstowne). When I asked how long a plug would take (had young son with me) I was told 15 mins. The gentleman was not lying! The tire was repaired very quickly. Another gentleman, Max, was so courteous and kind with my son while we waited (even showed him how the car lift works). Will be taking both my husband's car & mine here for any needed work in the future. Very affordable.

, 02/01/2023

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