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 Cascade 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
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Always top notch service! On time as promised and with prices that are always better than the dealership.
I've had several cars serviced by Cascade Auto Services. They do a great job at a fair price. Perhaps more importantly, they are have shown the utmost integrity in working on my vehicles.
Jeff and his guys do a wonderful job of providing service and explaining the process behind what they are doing and why it needs to be done. I highly recommend Cascade Automotive Service!
Since moving to the Grand Rapids area I went from repair shop to repair shop looking for a place that did great work and had fair prices. Went a decade before finding Cascade Automotive and now that is where I take my vehicles. They accurately diagnose the issues, fix things right, all at the reasonable price. I trust Cascade Automotive.
Cascade Automotive has always given us top notch service on all of our vehicles! And much better pricing than dealerships. Also love that it’s close to home and can walk home after dropping off my vehicle. Very reliable service, they have our trust!
Great service at Cascade Automotive Service. They are very efficient. This was appreciated greatly. A sense of urgency when you don't have a car is very nice. They explain in detail what needs to be fixed get the job done right. They also open at 7:30 which is nice for early drop offs before work. I would recommend this service. Thank you!