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 Newman's Marathon, 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
Always thorough and no one can beat their customer service. Love these guys.
Excellent service, do work on my time schedule. Consistent outstanding service.
Wonderful feeling of home town service and atmosphere. Very fair pricing on everything. All staff members are helpful and very knowledgeable and very personable.
I took my car here when I was having some trouble with the brakes. They let me know that there were some other serious issues with the car and, instead of pressuring me to pay them an arm and a leg to fix it and get my car back on the road, they were up front with me and let me know it probably wasn't worthwhile to fix what was essentially a lost cause. They were really friendly and helpful throughout our interactions and I will definitely seek out their services in the future.
I take my van to Newman's for service because I know, without a shadow of a doubt, that I will get good, honest care. The owner is local and has an excellent reputation. Their charges are fair and they communicate with you before going ahead with repairs. I recommend them all the time.
This is a great place to get some work done on your car or get gas. Staff is friendly, fair, knowledgeable, and trustworthy. Myself and my family have been going here for years, and we've never had a bad experience.