Why My 2015 Chevy Tahoe Started Shaking—and How I Diagnosed It Without Guessing There are few things more frustrating than starting your vehicle, pulling out of the driveway, and immediately feeling something isn't right. That's exactly what happened with my 2015 Chevrolet Tahoe 5.3L EcoTec3 V8. With approximately 175,000 miles on the odometer, it had been an extremely dependable SUV. Then, on an unusually hot summer day, it suddenly developed a rough idle that shook the enti