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Best Auto Repair, Tucson

CENTRAL LOCATION
5302 E Speedway Blvd Tucson, AZ 85712

520-325-5500

EAST LOCATION
8455 E Broadway Blvd Tucson, AZ 85710

520-298-1103

NORTHWEST LOCATION
4443 W Ina Rd, Suite 141 Tucson, AZ 85741

520-744-0655
Opening Hours
  • Mon 8:00AM - 5:00PM
  • Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
  • Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
  • Sat 8:00AM - 12:00PM
  • Sun Closed
CONTACT US

520-325-5500 | 5302 E Speedway Blvd, Tucson, 85712

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

AASTRO Transmission & Auto Repair

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 AASTRO Transmission & Auto Repair, 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

$12.49 OIL CHANGE SPECIAL

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We are offering our valued customers a $12.49 conventional oil change (up to 5qts) which comes with a full inspection and tire rotation.

  • ASE (Automotive Service Excellence)
  • IATN (International Automotive Technicians' Network)
  • Automatic Transmission Rebuilders Association
  • Mitchell1
  • ASA (Automotive Service Association)
  • Automotive Training Institute
  • Atsg
  • Enterprise
  • Interstate Batteries
  • Wynn's
  • LubeGuard
  • Royalty Rewards
  • FVP
  • Car Care Aware

Testimonials

, 08/10/2021
Nice, polite and attentive staff
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