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 D & B Bear 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.
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My 4runner had a differential break, and had to be completely rebuilt. The shop took really good care of me by fixing it with a quick turn around as well as let me take it in early. Super amazing people that really care about it's customers, and very professional. I recommend this place over any place in Corvallis, or near these guys are the really deal. All questions I had about the work had to complete they answered.
I had a severely bent tie rod on my new Honda CRV. D & B Bear Auto replaced both the inner and outer RF rods and aligned all tires on the vehicle, correcting a poor alignment in the rear. The poor alignment in the rear had caused the rear tires to wear excessively in two places. I had to replace those tires as well. They did a timely, excellent job. My vehicle only has 5k miles on it due to COVID and little driving since it was purchased. It runs and handles better than it did when I drove it off the lot after purchasing it. Thank you so much...I will be back!