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

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 - 5:00PM
    Sat 8:00AM - 12:00PM
  • Sun Closed

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 John's Motor & Transmission, 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 People Say About Us

  • reviewicon

    This shop is wonderful, extremely honest. Pricing is beyond fair, I am yet to have a poor experience. Staff friendly, never try to rush you out, always explain in detail what the car needs. I send my son there without any worries. If your not using Johns you may want to consider it.

  • reviewicon

    Outstanding Service, honest & Professional mechanics, highly recommended...

  • reviewicon

    John's is the best auto shop around. His techs are very knowledgable. Better than going to a dealership and way less expensive. Wonderful attitude and friendly service.

  • reviewicon

    Have been going here for years. Knowledgeable and trustworthy.

  • reviewicon

    Gr8 peeps! Trustworthy & take VERY good care of my mother 60+!!!

  • reviewicon

    Great service! Take all my vehicles here!

Call us for service: 716-695-1567

ASE (Automotive Service Excellence)
NAPA
ATSG
BBB Accredited Business
  • Car Care Aware