DARRELL'S FIRESTONE
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 Darrell's Firestone, 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 People Say About Us
Thank you for great service.
Very easy to obtain an appointment. Seamless and courteous check in and check out process. Quality work and good customer service. Thank you!
Chris was great, honest, very helpful.
Majida Haddad, 06/01/2022
Quick and price.
Tanisha Williams, 05/28/2022
Great honest mechanics, I'm not used to putting those words together in a sentence but Darrell's Firestone is the best auto service around, not out to rip people off and sell a bunch of stuff you don't need. Technicians are fast and reliable. No fixes ever need to be re-done which some repair places can't even get right the first time. I've been here 3 times for an old Blazer and have nothing but praise for these guys! I recommend them 10000% and Jason the office manager is super kind and always explains what the tech needed to get done and why. They NEVER overcharge and they are located in beautiful Farmington, Michigan .
Daniel Jaquier, 05/14/2022
Jason did an awesome job. He went above and beyond and was even able to knock some money off the final price!