Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
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 Moncur'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.
Contact Us Today!
Got questions? We've got answers! Drop us a line, give us a call, or even stop by. Our team is eager to help you with any auto repair needs you have. Let's get you back on the road safely and swiftly!
What Our Customers Are Saying
Kerry was professional, polite and knowledgeable. He explained everything clearly and thoroughly. I appreciate his care and patience with me as a new customer. I trust that he has the expertise to diagnose items others miss, while not upselling you for repairs or parts that you do not need. I appreciate his ability to use his experience in solving intermittent, or tricky issues. I would not hesitate to bring my cars to his location again or to recommend friends and family to his shop. Everything was straightforward and handled with courtesy. I look forward to working with Moncur's in the future.
General Services, near Mesa, AZ
Had a lovely experience getting my 4runner serviced here! Highly recommend- will be returning :)
Mesa, AZ
Moncur's was great! A/C went out on my car so I decided to take it to AAA to get diagnosed. They told me since the leak was so small that in order to find it, they wanted to charge me $450 to re-charge my A/C system up with refrigerant & dye, and then come back when the system was empty again so they could find the leak and diagnose what needed to be repaired/replaced. Then they were going to charge me that same price for refrigerant, AGAIN, on top the cost to fix the leak. Seriously? Moncur's found the leak by pressurizing the system overnight with dye and replaced the leaking condenser quickly. Had my car back to me working again within 2 business days and a 2 year parts,service, and labor warrenty. Excellent customer service also. Take you vehicle here to this trusted family business and not AAA. Thank you Moncur's!
Kerry was great! He went above and beyond, all for a reasonable price.
