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Best Auto Repair, Escondido

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Replace Your Car's AC Thermal Expansion Valve or Orifice Tube

 49 Verified Review(s)

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 Alternative 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:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


what our customers say

The team is dependable and genuine. Highly recommend!
J
, 08/22/2022

I have been going to Alternative Automotive for over twenty years. There has never been a time when I have not been greeted and welcomed. I have always been pleased with their service on my cars. I wouldn't go anywhere else.
C
, 08/07/2022

Great service, quality service. Always upfront as to any issues, no hard sell. You can trust what they say.
R
, 07/12/2022

First experience with Alternative Automotive was a great one. My car broke down and Daniel and the team had me in and out in no time and back on the road. They were very professional and honest to work with. I will definitely be back next time I need service for my autos.
M
, 06/11/2022

Jeff is an amazing service advisor ready to help you get your car serviced and any needed repairs done quickly and reliably.
M
, 05/27/2022

Daniel and George are great! Friendly, knowledgeable, and fair!
J
, 05/04/2022

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