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 Carroll's 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

A clean facility , with the nicest people!


tire-track-image

Get free Coupons

Take advantage of these great offers!

***FALL SPECIAL $79.99***

32-Point Vehicle Inspection
Lube, Oil & Filter (up to 5 quarts)
Check All Fluids
Check Battery
Check AC/Heating System
Check Belts, Hoses, and Filters
Vehicle Maintenance Inspection
Check Wiper Blades
Check Brakes & Tires

Not valid with any other offer. Does not include sales tax, or additional parts or supplies. Synthetic oil will be charged extra.

partners

ASE (Automotive Service Excellence)
CARQUEST
IDENTIFIX
Jasper
World Pac
ASE Master Technician
ASA
Amsoil
Automotive Training Institute
Car Care Aware