- Mon 8:00AM - 5:00PM
- Fri 8:00AM - 5:00PM
- Tue 8:00AM - 5:00PM
- Sat Closed
- Wed 8:00AM - 5:00PM
- Sun Closed
- Thu 8:00AM - 5:00PM
- Early drop-off M-F at beginning at 7:30 a.m.
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 West End Garage, 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
What People Say About Us
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Gerry Schulze, 05/11/2023
This shop has always been excellent. We have a 2005 Toyota Sequoia and a 2010 Honda Odyssey which are still running great since we get them serviced regularly. -
Bonita Chambers, 10/08/2022
They are the best they check it out price fairly and guarantee their work can't ask for anything more.
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Paige Snellgrove, 09/26/2022
My dad works there so it must be good! But I'm there sometimes too. -
Robyn Davis, 09/10/2022
Just used West End Garage for the first time this week. I was VERY happy! Their prices were very reasonable and they kept me informed of the progress of the work. They were knowledgeable without being arrogant or condescending which is especially refreshing as a woman who understands nothing about vehicles. I have definitely found my go-to mechanic for any future needs. Highly recommend this place for anyone who needs service on their vehicles.
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Ron Corley, 07/01/2022AC Repair, near Little Rock, Arkansas
I was quoted a price of over $1700 to have the A/C on my 2009 GMC Sierra repaired by a local large dealership. Budd at West End Garage said he would check it out and there was a good possibility he could fix it without having to replace the compressor. He replaced what he thought was wrong (after calling me and explaining what his plan was). He wound up fixing my A/C for a few dollars more than $300 (saving me more than $1400) The A/C now blows the coldest air it has since I can remember. Not only did they save me a ton of money, but were super nice and informative in the process. Thanks West End Garage. -
Tim Ridge, 05/29/2021AC Repair, near Little Rock, Arkansas
Friendly, knowledgeable & professional; left classic auto for repair work. Have a great reputation and will share more details after repairs are completed.
Call us for service: 501-455-4396
