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 Dependable Auto Repair & Body, 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
what our customers say
Car became disabled out in Rockaway so Geico Roadside Assistance picked me up. They recommended Dependable which thankfully was the perfect call. They took me in and got right to work on emergency repairs. Super convenient for anyone living in or near Ridgewood and the staff was super friendly and consistent with repair updates. Looking forward to coming back, hopefully next time with an appointment and not a breakdown!
I went to Dependable to have my alternator replaced after another mechanic had given me a cheap part three months before. Jose and his team were super fast with the job. They kept me informed and updated about the car, and worked with me regarding the manufacturer warranty for the alternator. The price was also super reasonable. I would definitely work with them again.
