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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 Walker Auto Service LLC, 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

ASSOCIATIONS

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  • Car Care Aware

Testimonials

  • reviewicon
    I don't even live in the area anymore and I make sure anytime I have a car giving me issues, I get it taken to Walker Auto. Over the last eight years, I have brought six different cars in for work, and they have been very knowledgeable about all of them. They're not pushy, they're very matter-of-fact, fast, and professional.

  • reviewicon
    Its finally nice to take my car somewhere thats honest. Highly professional. I am recommending to all my friends. They were able to fix my car the same day and were less expensive than two other shops. Much appreciated.

  • reviewicon
    I live 54 miles away and needed my alternator fixed ASAP so I could get back home. I called all over GR first at the bigger service shops and NO ONE could get me in for a week or two, I thought all was lost. I searched one more time in walker for service shops and these wonder people came up on Google. As a final attempt I called in tears and told them about the situation and right away they had me bring my car down and fix it. If it wasn't for these awesome men I would be stranded still. :) :) :) :) I have now found my new service shop for my car.

  • reviewicon
    Super friendly. Fixed my truck the same day I bought it into them. AWESOME!