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 Cahill's Tire & Auto Service, 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
I am on disability and severely needed 4 new tires on my car. I called around to multiple places to get quotes on tires and everywhere I called I couldn't afford, or the place was trying to get away with giving me the worst tires at the highest price. I called Cahills and got a quote for 4 tires balanced with an alignment cheaper than anywhere around, and the tires were better quality than any of the other places. All of the staff were extremely friendly and helpful. I had taken my car to the dealership 2 days prior to going to Cahills and was told there was a wheel bearing issue, and Cahills confirmed this but quoted me less than half the price for repair as the dealership. I'll be calling tomorrow to schedule wheel bearing repair with Cahills.
Wonderful customer service-called about a radiator leak and they were able to get my car in the very next day. Job was done in 1 day and just below their quoted price. My husband is pretty handy and luckily is able to take care of most maintenance and issues but for all jobs too big for the drive way, these are definitely my go to mechanics-HIGHLY RECOMMENDED!!! Thank you again for such great service!
Being on disability I checked all around Worcester county, not only does Cahill's have the best pricing their service is ten stars, great (owners) folks all around ! Its nice to leave a business and know that you weren't taken to the cleaners !
Great service and great prices on a set of 4 tires. Check around for the total price and Cahill beats the others.
Customer service awesome, very accommodating.
Friendly, honest, and reasonably priced service!