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Best Auto Repair, Austin

9324 W Hwy 290 Austin, TX 78736

512-288-4932
Opening Hours
  • Mon 7:30AM - 6:00PM
  • Tue 7:30AM - 6:00PM
  • Wed 7:30AM - 6:00PM
  • Thu 7:30AM - 6:00PM
  • Fri 7:30AM - 6:00PM
  • Sat Closed
  • Sun Closed
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512-288-4932 | 9324 W Hwy 290, Austin, 78736

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

Austin Auto Repair

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 Austin 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

  • ASE Master Technician
  • BBB Accredited Business
  • BG Products
  • Car Care Aware

Testimonials

Today I dropped in to see if they could pull a bearing off of my RV started motor that operates my RV hydraulic jacks. I had just purchased a new motor and needed help. I was at this repair shop for a total of 20 minutes, and they were able to successfully remove the bearing from the shaft, and I was on my way. And all they asked for was a $5 or $10 tip to the young mechanic who did the job! I would return to this shop in a heartbeat. Great and nice folks.
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