Best Auto Repair, Bushwood

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

Working Hours
  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • 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 Hill's Auto Repair, 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
    , 09/16/2021

    Hills always has done a great job on my vehicles. They value your time and business!

  • reviewicon
    , 09/09/2021

    Hills staff are great. They are courteous and helpful. John took time to talk with me after I had my oiled changed and expressed about a couple concerns while explaining the action needed to help.

  • reviewicon
    , 09/03/2021

    Always very professional, great people and service. We come here for the whole package. Their great ratings are well deserved.

  • reviewicon
    , 09/02/2021

    Extremely courteous, professional, repairs done in timely manner.

  • reviewicon
    , 09/01/2021

    They do a professional repair on my Antique car. Great shop, great service, great people and they treat your car with care. The staff is very professional as David will do what is necessary to obtain parts needed to complete the Job. I Al Johnson

  • reviewicon
    , 08/26/2021

    They do a professional repair on my Antique car. Great shop, great service, great people and they treat your car with care. Al Johnson

Call us for service: 301-769-2400

ASE (Automotive Service Excellence)
IATN (International Automotive Technicians' Network)
Jasper
NAPA
BG Products
Amsoil
  • Car Care Aware