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 C&T Transmission & 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.
I am always comfortable going here because I know these people won't do me wrong.
If you want an honest and timely shop, this is definitely the place for you and your vehicle!
Can not thank Ben and his staff enough (specifically Toni) for the outstanding communication and service (customer and mechanical) in the process of rebuilding the transmission and clutch in our 2005 Jeep Rubicon LJ.
From a recommendation by our local 4x4 and speed shop.....they have earned our trust with proven diagnostic through solution and budget based mechanical service.