Using an Orifice Tube Color Chart to Fix Your Car A/C

You're likely staring at an orifice tube color chart right now because your car's air conditioning has decided to turn into a lukewarm hair dryer. It's a frustrating spot to be in, especially when the sun is beating down on the asphalt. That tiny, plastic-looking filter thing might not look like much, but it's actually the heart of how your A/C manages pressure. If you get the color wrong, your car won't stay cool, and you'll be right back where you started, tearing the dashboard or the engine bay apart. ...

May 1, 2026 · 6 min · Lugo Cintia