Best Auto Repair, White River Junction

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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 Bob's Service Center, 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

  • AAA Approved Auto Repair
  • AAA Show Your Card & Save
  • ALLDATA
  • Automotive Service Excellence
  • International Automotive Technicians' Network
  • Identifix
  • Mitchell1 OnDemand
  • Parts Plus
  • Car Care Aware

Testimonials

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    I would like to say thank you so much for such great service. Nate was there to help me very promptly, he was helpful, kind and courteous. He quickly and calmly assessed what needed to be done in what was a stressful situation for me. Thank you very much, highly recommended!

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    Bob's is a reliable, well priced service. They are always friendly and communicative about the service work they do on your vehicle. I would absolutely recommend them for any and all car service needs.

  • reviewicon
    Great service. Very polite and explained what needed to be done and broke down the costs for me. Both my husband and I have brought our vehicles here for inspections and repairs and we've been happy.

  • reviewicon
    Reliable and trusted service operation. Our family has gone to Bobs for years. They have towed us out of a bunch of snow banks and fixed our cars. They do very good work at a very fair price.

  • reviewicon
    Had nothing but a wonderful experience at Bob's. Spanky was so helpful in getting both my car and my husband's truck street legal. They were actually recommended to me and I can see why, they're great!

  • reviewicon
    Great service & fairly priced. Surprised by a customer comment on this site that you are treated second rate unless you have an expensive car. I have an older vehicle and have gotten top notch service every time!!