Best Auto Repair, Matthews

475 Stallings Rd Matthews
NC 28104

Call Us

704-821-8045

Working Hours

CONTACT US

A & B Automotive Inc.

 (70 Reviews)

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 A & B Automotive Inc., 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.


Reviews

Quote reviewicon

Great local automotive repair shop. Highly recommended! Great service at reasonable prices.

, 02/15/2024

Quote reviewicon

They were so helpful. Got my car in and fixed what needed. Then when the fix failed, they were quick to get it back in and fix it. And at the last minute the added in some extra work. They got my business for life!!!

, 01/18/2024

Quote reviewicon

A&B is a local treasure. They fix what needs fixing, and they're honest.

, 01/09/2024

Partners

IDENTIFIX
NAPA
O'Reilly Auto Parts
Car Care Aware
TAP TO CALL NOW 704-821-8045 X