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

University 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 University 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

University Automotive Offers Auto Repair Services You Can Count On!

ACDelco
ASE (Automotive Service Excellence)
AAA Approved Auto Repair
ASE Master Technician
Car Care Aware

TESTIMONIALS

reviewiconKnowledgeable Staff
This review is for Cameron and the technicians that worked on my car. I'm from another city and get most of my vehicle work done there. After learning of a bad alternator and other problems, Cameron worked to find the most efficient solution to honor my warranty from the auto shop at home, in order to complete the work here. Many phone calls, numbers to exchange and decisions later, my car was finished! Cameron was incredibly helpful, kind and respectful. I've never had such good customer service at an auto shop. I would definitely come back next time my car needs service!
, 08/26/2019
reviewiconTrustworthy Mechanics
I dropped my car off for an oil change. I was asked what time I needed it back and they were accommodating and had the car ready when I needed it! They identified some additional service items and included actual pictures of the problem parts. It's really nice to be able to see the broken parts before authorizing the service! Overall great experience working with the people at University Auto.
, 02/20/2020
reviewiconHonest Auto Shop
Always so professional, honest and proficient! They have been servicing my cars for 15 years!
, 02/27/2020
reviewiconProfessional Advice
I'm always happy with how proactive they are in being thorough and making immediate recommendations so you can consider your options. I never feel they pressure me to feel obligated to resort to their services to fix whatever is needed. Their level of professionalism and customer service is to be laudable. I always recommend University Automotive to friends and colleagues.
, 06/18/2018
reviewiconAmazing Service
I have brought my company vehicles here many times and have always had great service. They are honest and do high quality work. I also appreciate the drop off and pick up service they provide.
, 04/06/2019