16 Feb. 2016 Broken Teeth on Your Flywheel Broken Teeth on Your Flywheel? If you hear a grinding noise when you’re trying to start your car you might have some broken teeth on your flywheel. There is obviously other possibilities but its worth investigating. The flywheel, also called a flex-plate on automatics, is bolted to the back of the engine. Between the engine… Jeremy Turner CategoryCar Won't Start, Grinding Noise, Mechanics, Repair, Services, Uncategorized 0 Comments