TXV vs. Orifice Tube: The Key to Accurate A/C System Diagnosis and Repair
Understanding your automotive A/C system diagnosis starts with identifying the correct A/C metering device for your car. In this video, you’ll learn the key differences between a thermal expansion valve (TXV) and an orifice tube, including how each impacts refrigerant flow control systems and overall performance.
By breaking down orifice tube versus TXV designs and highlighting critical A/C system components automotive technicians encounter daily, this walkthrough helps you avoid misdiagnosis and costly comebacks. Whether you’re troubleshooting or performing repairs, knowing what system you’re working on matters. Watch the full video for clear, practical guidance you can apply in the bay immediately. For more information, visit https://autozonepro.com/ac.
About the Author
Erik Screeden
Technical and Multimedia Content Director
Erik Screeden is the Technical and Multimedia Content Director for the Vehicle Service & Repair Group. Erik is an ASE Master Automobile Technician with L1, and L4 credentials, who has been in the industry for over 25 years in various capacities. During that time, Screeden was a technician. He started out at a Ford dealership and continued to several independent repair facilities as well as spent time in the specialty aftermarket at a GM-specific performance shop. After his time as a technician came to an end, Screeden transitioned into a role providing scan diagnostic and J2534 tool support. He was then able to parlay his experience as a technician and a support specialist and use that in several technical sales roles.
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