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 AASTRO Transmission & 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:
$149.99 Transmission Service, Engine Oil Change, Tire Rotation and 41 point vehicle inspectionview coupon
Transmission Service Includes up to 4 qts of conventional fluid (synthetic extra), filter & pan gasket
Engine Oil Change includes up to 4 qts of conventional oil (synthetic extra) and filter
Michael O'Brien, 07/24/2023
I rarely give 5 star reviews after visiting a place once. I needed a Subaru mechanic for my 2011 Forester and I found Astro Transmission on a Google search. Right away I was put at ease with Patrick's knowledge and competence on all things automotive, especially my Subaru. The thing that pushed it to 5 stars was their willingness to educate me about the work needed on my car, and why, and to help me to decide what was an immediate concern and what could wait until my financial picture is a bit rosier. The work preformed on my Subaru was finished on time and at the price point we had agreed, they even handled a few minor repairs without charge! Patrick and the other mechanics at the Ina Road location are tops, Ron the "cost estimator" gave a great estimate on all the parts needed, the peace of mind that comes with the knowledge that I have a competent and honest mechanic is priceless. Thank you guys at Astro Transmission!, I highly recommend them for your automotive repairs.