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Best Auto Repair, Winston-Salem

3500 N Patterson Ave Winston-Salem, NC 27105

336-724-7463
24 Hour Towing 336-744-5162
Opening Hours
  • Mon 7:30AM - 6:00PM
  • Tue 7:30AM - 6:00PM
  • Wed 7:30AM - 6:00PM
  • Thu 7:30AM - 6:00PM
  • Fri 7:30AM - 6:00PM
  • Sat Closed
  • Sun Closed
CONTACT US

336-724-7463 | 3500 N Patterson Ave, Winston-Salem, 27105

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

Whiteheart and Sons Automotive and Towing

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 Whiteheart and Sons Automotive and Towing, 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

coupons

$10 OFF DIAGNOSTICS SPECIAL (Regular Price $69.95)

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Call (336) 724-7463 for details!

  • Napa Auto Care Center
  • ASE (Automotive Service Excellence)
  • Car Care One
  • AAA (American Automobile Association)
  • Car Care Aware

Testimonials

, 12/12/2021
I would just like to personally give a huge thank you to my technician William Newman who went above and beyond to help with my towing job. I knew my experience would be great and that I was with someone that I could trust as soon as he called and introduced himself with appropriate questions as to what the issue was. I had just dealt with another towing service who tried to unfortunately take advantage of my car situation and have me pay extra for a service I didn't need, but William explained that these services weren't needed and that he could tow my car as promised. He was very transparent and I appreciated his kindness and skill during the whole experience. I will be sure to use Whiteheart and Sons and specifically request William if I do ever need towing services. Thank you!
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