Ron Ananian, The Car Doctor introduces Chuck Kincaid from Redline Detection, a frequent guest on the show, to discuss diagnostic techniques, particularly the use of smoke machines.

Key topics covered:

1. Importance of Diagnostics – The show highlights how vehicles today require advanced diagnostics, from simple issues like leaky tires to complex problems in electric vehicles.
2. Using Smoke Machines for Leak Detection – Chuck explains how different types of smoke machines help diagnose various vehicle issues, including lean fuel conditions, evaporative emissions system leaks, and intake gasket failures.
3. Pressure Variations in Smoke Machines – Not all smoke machines function the same. Higher pressure smoke machines (up to 10-15 psi) are necessary for certain tests, such as detecting intake and exhaust leaks, while lower pressure machines work for EVAP systems.
4. Turbocharged Vehicles and Smoke Testing – The conversation covers how turbocharged engines require higher-pressure smoke testing due to their boosted intake systems, which a standard EVAP smoke machine cannot properly diagnose.
5. Applications Beyond Engines – Smoke technology is also used to detect water leaks in vehicle cabins, HVAC issues, and even cooling system leaks if the coolant is drained beforehand.
6. Exploring New Applications – The show briefly touches on whether smoke or pressure testing could be applied to air conditioning systems, though there isn’t a definitive answer yet.

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