starter grinding noise. I think the ring gear is bad on the fly wheel.

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Oh no! Sounds like your LeSabre may have chipped a tooth! But we don't need a dentist when you have Car Geniuses! You can replace the flywheel but have you checked the starter motor bendex yet? If it's a stripped gear on the starter, that would be a lot less expensive to repair. To replace the flywheel/ring gear typically costs between $500 to $1000. It's possible to do it yourself if you have mechanical experience and the right tools, but it's not an easy job. The transmission needs to be removed to access the flywheel, but you don't necessarily need to pull out the engine. However, it's recommended to consult a professional mechanic for proper diagnosis and repair to ensure the job is done correctly. If you have any other questions feel free to call us at 877-913-1554! We'll gladly find you a certified RepairPal shop in your area!