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Best Auto Repair, Richland Center

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Shawn's Auto Repair and Performance

Vehicle maintenance when you need it!


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 Shawn's Auto Repair and Performance, 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:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


what our customers say

We have recommended Shawn's to numerous people. My husband and I always feel confident that Shawn will give us honest advice and that work will be done properly. In fact, Shawn has gone out of his way quite a few times to help us out.
G

Shawns always seem to find the problem and they are always nice and curtious to me when I go in there.
N

Of all the auto mechanics I've been to in Wisconsin and Virginia since the 1980's, Shawn's consistently delivers the best service for the lowest cost
J

  • ASE (Automotive Service Excellence)
  • IDENTIFIX
  • IATN (International Automotive Technicians' Network)
  • ASE Master Technician
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  • Car Care Aware
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