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

RPM 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 RPM 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


Reviews

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Used them for many years with all of my cars when I was much younger ( mid 80's), I had one of the fastest and well maintained 77 280Z's in town all because of these guys! So happy to see they are still helping people with their cars and getting the wonderful reviews they truly deserve! I can only wish we had mechanics half as knowledgeable and honest as Tommy out here in east Texas! Miss you guys!

, 12/14/2021

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Always professional, on time as much as can be expected for repairs and general maintenance. Over 20 years servicing my cars and always so well pleased. Never felt like something was being done that did not need done, but was always advised to think about maybe this repair or this maintenance in 3, 6, or maybe 9 months might be need to checked. Depending on my driving mileage. BLS

, 12/06/2021

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Tommy is always helpful and answers my questions like I really know what I'm talking about concerning my car (I don't!) I appreciate the fact that he is my "car guru"!

, 11/18/2021

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