Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
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 Marty's Auto 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.
Once again Marty's Auto Repair saved the day! My Ford Explorer stalled on my way to the shore Thursday night. Marty happened to be in the office on the Holiday of July 4th when I called. He told me to bring my truck right in and he would check it out. He fixed my vehicle and I was able to get to the shore for my birthday celebration. A few days later I received a call from Rachel, one of his awesome employees, just to check on me and see how my vehicle was running. At Marty's request, I brought the truck back in so he could re-check the sensor and all is still good. Not only is Marty an awesome mechanic he is an honest business man. I truly believe he services my vehicle as he would his own family and his customer's safety and satisfaction are his priority. Thanks for always looking out & taking care of your customers Marty's Auto Repair & staff - you guys rock!!