Grinding When Starting the Engine
See a Mechanic Soon — Urgency 4/5Once the engine is running, the car is safe to drive. The issue is only when starting. But be aware that each start could be your last until it is repaired — avoid turning the engine off in places where being stranded would be dangerous or inconvenient. This is general information — see a professional promptly.
This is general guidance. Your situation may differ — when in doubt, don’t drive.
What does it sound like?
A harsh grinding or crunching noise when you turn the key or press the start button. It sounds like metal teeth clashing together. The engine may take longer than usual to turn over, or you might have to try a few times before it starts.
What could be causing it?
It could also be a worn flywheel ring gear (the teeth the starter connects to), a weak battery that is not giving the starter enough power, or a faulty starter solenoid.
What should I do right now?
Get this checked by a mechanic within a few days. A failing starter will eventually stop working altogether, leaving you stranded. Do not keep trying to start the car repeatedly if it is grinding — you will damage the flywheel, which is a much more expensive repair.