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 Gretchen's Automotive, 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
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An asset to the neighborhood! Trustworthy and Fair mechanic! If I can't do it. Gretchen's Automotive is ALWAYS my 1st call.
They were so nice here! They saw me super quickly, fixed my car up, gave me some good advice, and sent me on my way. Think I found my new mechanic in Long Beach! A+
I've been going there for years. Honest, reasonable prices and an awesome crew makes this a must for quality auto repair/maintenance.
My family has trusted Gretchen's Automotive with all of their many cars, throughout the years. They are always honest and trustworthy in their repairs. You can count on not getting ripped off here!
Great service and friendly staff! Highly recommended for all your repair needs!
Great service took my car there for an oil change and needed a few other minor things done. They suggested some maintenance things that needed done without any pressure. Quick and affordable. Great place.
I called because my tire pressure light went on. I went to 76 to put air in the tire and noticed a screw in the tire. I called Gretchen's since it is a block from my house, the guy on the phone said bring it by. His dad fixed it in moments for free. I talked to him about my tires and car...asking if they do oil changed on Mercedes- they do. Mercedes told me I needed new tires. They said I don't. Family owned local business you can trust? Doesn't get any better