510-786-1575 | 1812 National Ave, Hayward, 94545
Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Greg's 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 Greg's 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:
I don't do to many reviews but I felt that I needed to do this one on Greg's auto. This is the best automotive business establishment that I could recommend to anyone that wants their car or truck repaired right the first time. Greg is a hand's on kind of guy his mechanics are well trained and ASE certified. They are reasonable and do incredible work Dave is truly a top notch mechanic! I know all this because I have been going to Greg's Auto since 1997. Thank you for providing a great service at a reasonable price.