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

Ernie's Local Automotive Service


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 Ernie's Local Automotive Service, 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


Reviews

Quote reviewicon

These guys are so nice and honest. They work fast. I had a front end problem that had been misdiagnosed at 3 other shops. Ernie figured it out in maybe 10 minutes and fixed it same day! This is the only shop I will go to now!

, 09/12/2021

Quote reviewicon

Always honest and fair price

, 07/21/2021

Quote reviewicon

Car is running like a beast!!! Thank You guys!!!

, 04/29/2021

Partners

ACDelco
ASE (Automotive Service Excellence)
NAPA
ASE Master Technician
BBB Accredited Business
ASA Member (Automotive Service Association)
Car Care Aware
TAP TO CALL NOW 773-763-4488 X