Working Hours
  • Mon 8:00AM - 6:00PM
    Tue 8:00AM - 6:00PM
  • Wed 8:00AM - 6:00PM
    Thu 8:00AM - 6:00PM
  • Fri 8:00AM - 6:00PM
    Sat Closed
  • Sun Closed
    CLOSED FOR VACATION
    JULY 26TH-30TH
    IF YOU NEED ASSISTANCE CALL
    BENJI AT JAPANESE CARS 805-499-6178
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805-375-3117 | 300 Giant Oak Ave
Unit A, Newbury Park, 91320

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

Giant Oak 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 Giant Oak 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


What Our Customers Are Saying

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I cracked a cylinder head in my engine in my beloved 4Runner after initially thinking it was just a clamp accidentally left on my fuel line after a smog check elsewhere. Mike is so honest and his prices are so fair and reasonable and he even gave me a ride home and dropped me off. He also straightened out my license plate for free. What a guy!!!

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This is the best place to take your vehicle for repairs. Mike is a straight shooter and made the process of dealing with my warranty company very simple and stress free. He was very responsive and kept me well informed throughout the process. I strongly recommend this place for any auto repairs you need!

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My wife and I have been taking our vehicles to Mike at Giant Oak Automotive for over 20 years. During that time Mike and his crew have consistently provided excellent service at very fair prices. He is honest, hard-working, knowledgeable, and will go the extra mile to get the job done, often without charging extra. I would recommend his shop without hesitation for anyone needing a reliable mechanic.

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Excellent service and the person that helped me was so helpful and honest. I will be going back to this mechanic from now on. Thank you for your help and for easing my mind by taking good care of me and my car.

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I did my homework...received quotes from two other local shops. I ended up here and what a great decision that was. Mike is such a great guy! His prices are more than fair and work and work ethics A+. Come to find out, my two brothers and nephew already use Giant Oak as their go to mechanic. You know the feeling when you really know you have found an honest mechanic...This is the place and Mike is the man!

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Best place in the world. Mike is a gem, honest, knowledgeable and a hellava,nice guy. This is the place for your car, they will not sell or fix anything that doesn't need fixing. Just like the old days, good price, great work.

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  • Call Us For Service: 805-375-3117