Has GM Fixed the 3.6L V6? COMPLETE Cadillac LGX Engine Teardown and Analysis Reveals the Truth

Before 4 cylinder turbocharged engines became mainstream, GM's 3.6L engine was the base model for many vehicles. Packing 335 horsepower from the factory, this naturally aspirated V6 powers everything from the Cadillac CT5 and XT5 to the Chevy Camaro, Traverse, Blazer, GMC Acadia and Terrain. While early 3.6L motors suffered from timing chain failures, how does this modern LGX variant hold up, and how does it actually work? Today I'm tearing down a 2016 Cadillac CTS engine with 140,000km to see exactly how! I'll pull this high-tech engine apart piece by piece to inspect the cylinder heads, pistons, direct injection setup, and its controversial Active Fuel Management (cylinder deactivation) system. I'll also deep dive into the timing chain layout—a historically notorious weak point for GM V6 engines—to see if the LGX generation finally fixed the issue or if it’s a ticking time bomb. Whether you're a mechanic, a Cadillac owner, or just love seeing how engines work under the hood, this step-by-step disassembly and mechanical analysis will keep you informed and entertained! If you enjoyed this teardown, make sure to hit that SUBSCRIBE button, drop a like, and let me know in the comments. Would you trust this engine past 100,000 miles? Please share your experience with GM's 3.6L engines and what issues you've had working on your car! 🔧 TIMESTAMPS: 0:00 - Introduction to the Cadillac 3.6L LGX V6 0:36 - Removing the Intake Manifold & Pulling the Valve Covers 5:38 - The Timing Chain Setup: Did GM Fix It? 12:09 - Cylinder Head Removal & Active Fuel Management (AFM) & Lifter Inspection 18:05 - Flipping the Block: Oil Pan & Crankshaft Inspection 21:55 - Pistons, Rods, & Cylinder Wall Wear Analysis 25:00 - How the Engine Lubrication System Works 29:11 - Final Verdict: Is the LGX V6 Reliable and Well Built? Support me on Patreon: patreon.com/speedkar99 This is the Camera I use: https://amzn.to/3oaRcZX (US) https://amzn.to/3KWQ2uU (Canada) I may earn commission from Amazon affiliate links. Link to Etsy shop where you can purchase speedkar99's brother's socks, t-shirts or hoodies: https://www.etsy.com/ca/shop/Speedkar speedkar9 on Instagram and Tiktok   / speedkar9     / speedkar9   speedkar99 on Facebook and Linkedin:   / speedkar9     / speedkar99   Subscribe for more videos just like this: https://www.youtube.com/subscription_...