Working Hours
  • Mon 8:00AM - 5:30PM
    Tue 8:00AM - 5:30PM
  • Wed 8:00AM - 5:30PM
    Thu 8:00AM - 5:30PM
  • Fri 8:00AM - 5:30PM
    Sat Closed
  • Sun Closed
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539-217-1320 | 411 S Lincoln Ave
Suite E, Sand Springs, 74063

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

Ernie's Automotive Performance

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 Ernie's Automotive Performance, 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 Are Saying

ONE HELL OF GUY DOES GREAT WORK ONE VERY NICE PERSON GREAT WORK GREAT WORK WILL BE USING AGAIN THANKS FOR THE CARD IT MADE MY DAY THANKS DONCRAIN.

, 06/16/2021

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Performs necessary tasks, no additional or fake charges. A good mechanic and, A good man.

, 12/14/2020

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Great service every time. Does everything he can to help the customer.

, 11/12/2020

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Great place with reasonable prices.

, 12/09/2019

reviewiconBest Auto Shop

He is honest, respectful to women, a great mechanic, and an all around good person. You can trust him to take good care of your car. I give him a 5 star rating.

, 08/23/2018

reviewiconHonest Auto Shop

He was extremely communicative, honest, and most importantly did a fantastic job and had it done when he promised. Highly recommend for any type of mechanical work foreign or domestic. Thank you Ernie for taking great care of my car! Good honest mechanics are hard to come by.

, 11/27/2018
  • ASE (Automotive Service Excellence)
  • ASE Master Technician
  • BBB Accredited Business
  • BG Products
  • Wix
  • Car Care Aware
  • Call Us For Service: 539-217-1320