Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Morrison's Auto-Rite Inc
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 Morrison's Auto-Rite 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.
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Morrison auto shop has been a wonderful place to take my car. They let you know what needs to be done in a clear manner. I trust them.
Catherine McCarthy, 09/16/2021
Morrison's gives a thorough and patient consultation every time! I was referred here at the beginning of 2021 from a local facebook group and the service is unmatched! Eduardo and Rob are just so patient and, unlike a lot of other places-- they aren't condescending or make you feel obligated, and they explain and prioritize any potential fixes that need to be done. Every time I go in, I see them giving the same attentiveness to everyone. I'm the furthest from a car expert and I know I can trust them!!
Liz Eiseman, 09/02/2021
(Translated by Google) Top service! (Original) Top service!
Michele Lepietre, 08/23/2021