Sounds like solenoid is not releasing or ignition switch is not moving from start to run position. If solenoid is located on top of starter remove clean plunger and replace If solenoid is on firewall replace If the starter is not fully engaging the flywheel, you'll need to either replace the starter or the Bendix/solenoid assembly. If the flywheel has been damaged, you'll need to replace that as well.
Defective starter, or a problem with the flywheel. You need to check the starter and then remove it and check the flywheel.
starter not engaging flywheel properly. Replace starter, Checking for damage to flywheel while starter is removed.
The starter drive gear will be too close to the flywheel, causing a grinding noise when the starter is engaged.
The noise is the teeth on the flywheel grinding on the teeth of the starter. Check to see if the starter is loose, this is the most common cause of that noise.
This usually happens when the starter drive goes bad or if the flywheel has been damaged by the starter or previous starter failure. When you pull the starter to have a look, turn the flywheel and check all the teeth on it before replacing the starter.
if it is in fact the starter, it is probably engaging the flywheel. starter may be faulty.
Defective starter drive? Broken tooth on flywheel/converter? My guess would be either the flywheel, or if the starter has been changed recently, maybe there was a starter shim that was not put back in.
sounds like the starter is "grinding" on the flywheel teeth. Could just need a shim or two. Or the starter teeth may be getting worn.
Don't do that too often. If the starter Bendix is not fully engaging the starter gear into the flywheel, you could be wearing the flywheel. That could be expensive. Remove the starter and inspect the flywheel. Slowly turn the flywheel by hand and inspect the entire circumference of the gear.
sounds like a bad starter gear or bad flywheel
I think that maybe it could be the teeth on the starter or which I hope it's not the teeth on the flywheel of the engine. I guess it could just be the starter which is a cheap fix compared to the flywheel and alot easier to fix !!!!
1st thought is you need shims if the flywheel is hitting the starter. What is the year and model of the vehicle?