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

Working Hours
  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • Sun Closed

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 Major Muffler & 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

What People Say About Us

  • reviewicon
    , 05/25/2022

    10/10 with these guys. Was only in town for a couple days and wanted to get something done. Someone had missed their appointment so I got in only a couple hours after I first went into the shop to talk about what I wanted done. Time wise and service wise these guys are awesome, 10/10 recommend and love the way my car sounds now! Good job Major Muffler!

  • reviewicon
    , 05/24/2022

    This place is awesome! Their level of service is second to none! They were very polite and courteous. They do excellent work and we'll definitely use them again if ever needed.

  • reviewicon
    , 04/07/2022

    Honest work. Hard to find. Extremely happy with my service.

  • reviewicon
    , 11/12/2021

    Great people, very good at their job & back up their work!

  • reviewicon
    , 10/28/2021

    They are a great place to go.

  • reviewicon
    , 10/21/2021

    This guy is honest and a stand up business man. He could have done a $450 job and never told me my truck had a manufactures defect. I have come here in the past and had the same experience. Thank you for being honest. Scott

Call us for service: 530-223-6640

ASE (Automotive Service Excellence)
NAPA
BG Products
magnaflow
flowmaster
ascca
  • Car Care Aware