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Best Auto Repair, Beltsville

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Replace Your Car's AC Thermal Expansion Valve or Orifice Tube

 489 Verified Review(s)

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 Auto Express Service Centers, 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.


what our customers say

Great efficient service. And it was quick and pleasant too
B
, 02/20/2024

Good customer service and very professional Recommended this place for inspection
D
, 02/14/2024

I highly recommend Auto Express Service Center for automotive repairs and MD Inspections. I had a pleasant experience with them.
N
, 02/07/2024

Did safety inspection here Great tech and will recommend Customer service great!
R
, 02/03/2024

(Translated by Google) Excellent place It doesn't take that long (Original) Excelente lugar No se demora tanto
D
, 01/27/2024

Very Professional, helpful especially on Saturday, will recommend, customer satisfaction.
S
, 12/30/2023

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