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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 Dynamic Auto Repair, 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

ASSOCIATIONS

  • Car Care Aware

Testimonials

  • I'm very happy with this shop. Ryan and his team actually know what they are doing. I have been to a lot of crappy mechanics in Dallas but I have finally found a shop worth writing a good review! My truck had different issues going in that no other shop had been able to fix since September and they fixed it where it is still running great. Thank you Dynamic Auto Repair.
    , 07/17/2021

  • reviewiconAmazing Service
    I just dynamic auto repair and I must say the customer service was amazing! The tech Jose work on my car and that guy definitely knows what hes doing and besides that you could tell he loves what he does! He was very professional and was extremely nice I will definitely come back and recommend this place. Ryan also hooked it up with few parts and a good discount! You must go there! Thanks guys.
    , 04/18/2019

  • reviewiconHighly Recommended
    Great service. Ryan took care of my inspection, oil changed and brakes! My car was looking like a widow, but he turned it into a new bride. Now a returning customer!
    , 03/15/2019

  • reviewiconProfessional Service
    Great service on my work truck. Got an oil change and recommended a water pump replacement.
    , 03/07/2019