Skip to main content

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 Epic 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.


image-people-driving

OUR REVIEWS

image-quotes
reviewicon

This was my first time having my vehicle serviced at Epic Automotive... The service was superb... and very professional.. If my vehicle is in need of service in the future I will be returning to Epic Automotive.


tire-track-image

Get free Coupons

Take advantage of these great offers!

$10 off first time customers

Make An Appointment

Present this coupon at time of service. Not transferable and not for sale. This may not be combined with another offer or used for state inspections.

FREE Digital Inspection

With the purchase of 4 tires.

Cannot be combined with other offers.

10% OFF Military, First Responders & Teachers

Thank you for your service!

Cannot be combined with other offers.

Call for Brake Specials!

Cannot be combined with other offers.

partners

ASE (Automotive Service Excellence)
Napa Auto Care Center
BG Products
MO State Inspection Station
Akebono
Audiovox
Cooper Tires
Flash Logic
FlowMaster
Napa Collision Center
Car Care Aware