Why We Tore Down This 2016 Chevy Malibu — Timing Chain, Head Work & Valve Repair ExplainedThis 2016 Chevy Malibu came in after a fuel injection cleaning and tune-up didn’t fix the issue. We broke it down to the root cause: a worn timing chain, damaged guides and tensioner, and valve issues on cylinder #2. The head was sent to the machine shop for cleaning and valve replacement. This is NOT a DIY — just a clear explanation of what failed and why we replaced what we did. If your Malibu isn’t runni