DEEP Cylinder Scars! Why This FAILED Toyota Tacoma 2GR-FKS 3.5L V6 Engine Burned Oil | Full Teardown

Here's a COMPLETE teardown of a failed Toyota 2GR-FKS engine from a Tacoma that was suffering from MASSIVE oil consumption. I'm pulling the valve train, heads, timing set, oil pans and pistons out just to see exactly why this 3.5L V6 failed at 369,000km. The deeply scored cylinder walls we found are some of the worst I’ve ever seen on a modern Toyota, which begs the question, where has TOYOTA QUALITY gone? The Toyota 2GR-FKS is known for its D-4S dual injection system and Atkinson cycle efficiency, which drastically reduces carbon buildup compared to its GDI only counterparts. While oil burning is becoming more common on 3rd generation Tacoma trucks that use this updated 3.5L engine, the question at hand is why did the engine score the cylinder and piston skirts so badly? Was it a low-tension piston ring failure? Did carbon buildup lead to the deep vertical scratches on the cylinder bores? Or was it an oiling issue that led to this catastrophic engine failure? This engine clearly was well maintained with regular oil changes as it was very clean on the inside. I attempt at speculating causes, but if you've got any ideas to add, please drop a comment down below! If you own a Toyota Tacoma (2016+), Lexus GS 350, RX 350, IS 350, RC 350, ES 350, LS 350, LM 350, or Toyota Highlander, Camry, Avalon or Sienna, this teardown is a must-watch to understand the internal health of the 3.5L V6 powertrain and learn how it works. The 2GR-FKS model was updated from the 2GR-FE engine to feature a new VVT system using valves integrated inside the gears themselves. It has new oiling paths and an altered cooling system (more plastics!), in addition to D4S injection. Skip to section in this video: 0:00 - The Legendary 2GR-FKS Features 1:12 - Pulling the Intake & D-4S Components 5:26 - The Cooling System 8:13 - Removing the Timing Cover & Chains 12:21 - Valve Train and Cylinder Head Removal 15:18 - THE CARNAGE: Deeply Scored Cylinder Walls 19:14 - Piston & Ring Inspection and Discussion 23:22 - Examining the Cylinder Heads 25:57 - How the Lubrication System Works 29:00 - Final Verdict: Why This Toyota Engine Failed Technical Specs Engine Code: Toyota 2GR-FKS (3.5L V6) Platform: 3rd Gen Toyota Tacoma (N300) 2019 Toyota Tacoma with 369,000km, running when pulled! This is the Camera I use: https://amzn.to/3oaRcZX (US) https://amzn.to/3KWQ2uU (Canada) 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 https://www.instagram.com/speedkar9/ https://www.tiktok.com/@speedkar9 speedkar99 on Facebook and Linkedin: https://www.facebook.com/speedkar9/ https://www.linkedin.com/company/speedkar99/ Subscribe for more videos just like this: https://www.youtube.com/subscription_center?add_user=speedkar99 #toyotatacoma #2GRFKS #engineteardown #toyotareliability #oilconsumption #mechanic #tacomaworld #enginefailure #35LV6 #automotiveengineering