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918-832-7740 | 5935 E 15th St, Tulsa, 74112

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

Alternative Automotive

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 Are Saying

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I've been going to alternative automotive for 20 years. They have great service and operate with integrity!

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Not a better mechanic anywhere. Period. And the best thing of all, Mike is as honest as a summer day is long. He will NEVER sell you a service or part that your vehicle genuinely doesn't need. He will even offer a cheaper idea for you if you're in a pinch to help. I own 5 cars and no one but Mike touches them. -And, I have sent many people to him and everyone of them will say the same as me.

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Mike and his staff are top notch. They are professional, communicate the status of your vehicle, and are honest. I will be bringing my Mazda back to Mike and his crew from now on.

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Love this crew! I wouldn?t take my car anywhere else. Very professional and diligent!

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Have used them for the past four years. Honest, fast and good price.

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Best experience! Explains everything even if I don?t understand. :-) Treats my car likes it was his wife?s!

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  • Call Us For Service: 918-832-7740