518-477-5110 | 54 Old Miller Road
Suite A, East Greenbush, 12061
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 Pro Tech Tire & Auto, 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:
My husband and I experienced a blowout of one of our trailer tires on the highway. With traffic speeding by at 70 miles an hour my husband got ready to change the tire. James from Pro Tech happened by and parked behind us in his truck with lights blinking to help let oncoming traffic realize we were there. While he couldn't stay the whole time he did let us know Pro Tech would have a replacement trailer tire so that we'd still have a spare. When we got to Pro Tech James and Mike (the owner) helped us get the spare back in place, removed the blown tire from the bed of our truck and checked out the damage to our trailer septic system. Zip ties were applied to keep the remaining piping from dragging. They went above and beyond to help us and we were able to continue on to our campground 2 1/2 more hours away. Thank you!!!!